./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_5-1.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC --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 66ecdb3150790d7b9fa430121dbc9b6f1f7ee64a
...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE
--- Real Ultimate output ---
This is Ultimate 0.2.0-7b2dab5
[2021-10-11 00:27:04,656 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:27:04,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:27:04,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:27:04,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:27:04,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:27:04,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:27:04,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:27:04,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:27:04,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:27:04,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:27:04,759 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:27:04,760 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:27:04,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:27:04,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:27:04,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:27:04,769 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:27:04,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:27:04,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:27:04,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:27:04,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:27:04,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:27:04,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:27:04,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:27:04,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:27:04,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:27:04,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:27:04,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:27:04,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:27:04,793 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:27:04,793 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:27:04,794 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:27:04,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:27:04,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:27:04,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:27:04,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:27:04,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:27:04,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:27:04,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:27:04,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:27:04,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:27:04,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-10-11 00:27:04,825 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-11 00:27:04,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:27:04,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:27:04,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-11 00:27:04,827 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-11 00:27:04,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:27:04,828 INFO L138 SettingsManager]: * sizeof long=4
[2021-10-11 00:27:04,828 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-11 00:27:04,828 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-10-11 00:27:04,829 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-11 00:27:04,829 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-10-11 00:27:04,829 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-10-11 00:27:04,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-10-11 00:27:04,829 INFO L138 SettingsManager]: * sizeof long double=12
[2021-10-11 00:27:04,830 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-11 00:27:04,830 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-11 00:27:04,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-10-11 00:27:04,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:27:04,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-11 00:27:04,831 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-10-11 00:27:04,831 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:27:04,831 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:27:04,831 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-10-11 00:27:04,832 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-10-11 00:27:04,832 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-11 00:27:04,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-10-11 00:27:04,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-10-11 00:27:04,832 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-11 00:27:04,833 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_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66ecdb3150790d7b9fa430121dbc9b6f1f7ee64a
[2021-10-11 00:27:05,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:27:05,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:27:05,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:27:05,142 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-11 00:27:05,143 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-11 00:27:05,144 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/recursive-simple/fibo_5-1.c
[2021-10-11 00:27:05,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/data/bbcb9d2cb/b46d135c480b4490b61735a44017ce7c/FLAGcdeca9c26
[2021-10-11 00:27:05,709 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-11 00:27:05,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/sv-benchmarks/c/recursive-simple/fibo_5-1.c
[2021-10-11 00:27:05,730 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/data/bbcb9d2cb/b46d135c480b4490b61735a44017ce7c/FLAGcdeca9c26
[2021-10-11 00:27:06,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/data/bbcb9d2cb/b46d135c480b4490b61735a44017ce7c
[2021-10-11 00:27:06,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:27:06,120 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:27:06,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:27:06,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:27:06,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:27:06,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7b289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06, skipping insertion in model container
[2021-10-11 00:27:06,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-11 00:27:06,164 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:27:06,393 WARN L226 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_f3bf4582-d51c-455a-81ec-34cc951131bc/sv-benchmarks/c/recursive-simple/fibo_5-1.c[740,753]
[2021-10-11 00:27:06,396 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:27:06,412 INFO L203 MainTranslator]: Completed pre-run
[2021-10-11 00:27:06,432 WARN L226 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_f3bf4582-d51c-455a-81ec-34cc951131bc/sv-benchmarks/c/recursive-simple/fibo_5-1.c[740,753]
[2021-10-11 00:27:06,433 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:27:06,448 INFO L208 MainTranslator]: Completed translation
[2021-10-11 00:27:06,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06 WrapperNode
[2021-10-11 00:27:06,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:27:06,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:27:06,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:27:06,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:27:06,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:27:06,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:27:06,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:27:06,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:27:06,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
[2021-10-11 00:27:06,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:27:06,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:27:06,525 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:27:06,525 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:27:06,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-10-11 00:27:06,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:27:06,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:27:06,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-10-11 00:27:06,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-10-11 00:27:06,616 INFO L130 BoogieDeclarations]: Found specification of procedure fibo
[2021-10-11 00:27:06,617 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo
[2021-10-11 00:27:06,876 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:27:06,876 INFO L299 CfgBuilder]: Removed 4 assume(true) statements.
[2021-10-11 00:27:06,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:06 BoogieIcfgContainer
[2021-10-11 00:27:06,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:27:06,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-10-11 00:27:06,880 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-10-11 00:27:06,883 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-10-11 00:27:06,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:27:06" (1/3) ...
[2021-10-11 00:27:06,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d15b934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:06, skipping insertion in model container
[2021-10-11 00:27:06,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:27:06" (2/3) ...
[2021-10-11 00:27:06,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d15b934 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:27:06, skipping insertion in model container
[2021-10-11 00:27:06,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:06" (3/3) ...
[2021-10-11 00:27:06,887 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_5-1.c
[2021-10-11 00:27:06,901 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-10-11 00:27:06,904 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2021-10-11 00:27:06,914 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-10-11 00:27:06,938 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2021-10-11 00:27:06,938 INFO L378 AbstractCegarLoop]: Hoare is true
[2021-10-11 00:27:06,939 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-10-11 00:27:06,939 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:27:06,939 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:27:06,939 INFO L382 AbstractCegarLoop]: Difference is false
[2021-10-11 00:27:06,939 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:27:06,940 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2021-10-11 00:27:06,954 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states.
[2021-10-11 00:27:06,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11
[2021-10-11 00:27:06,959 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:06,959 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:06,960 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:06,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:06,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1755511548, now seen corresponding path program 1 times
[2021-10-11 00:27:06,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:06,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911550690]
[2021-10-11 00:27:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:27:07,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911550690]
[2021-10-11 00:27:07,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:27:07,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-11 00:27:07,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524948065]
[2021-10-11 00:27:07,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-10-11 00:27:07,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:07,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-11 00:27:07,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:27:07,248 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states.
[2021-10-11 00:27:07,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:07,385 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions.
[2021-10-11 00:27:07,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-11 00:27:07,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10
[2021-10-11 00:27:07,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:07,396 INFO L225 Difference]: With dead ends: 30
[2021-10-11 00:27:07,396 INFO L226 Difference]: Without dead ends: 18
[2021-10-11 00:27:07,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-10-11 00:27:07,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states.
[2021-10-11 00:27:07,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18.
[2021-10-11 00:27:07,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states.
[2021-10-11 00:27:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions.
[2021-10-11 00:27:07,446 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10
[2021-10-11 00:27:07,446 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:07,446 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions.
[2021-10-11 00:27:07,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2021-10-11 00:27:07,447 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions.
[2021-10-11 00:27:07,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2021-10-11 00:27:07,451 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:07,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:07,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-10-11 00:27:07,453 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:07,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:07,456 INFO L82 PathProgramCache]: Analyzing trace with hash 2128459596, now seen corresponding path program 1 times
[2021-10-11 00:27:07,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:07,456 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224148940]
[2021-10-11 00:27:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:07,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:07,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-10-11 00:27:07,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224148940]
[2021-10-11 00:27:07,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-10-11 00:27:07,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-10-11 00:27:07,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865777557]
[2021-10-11 00:27:07,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-10-11 00:27:07,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:07,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-10-11 00:27:07,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-10-11 00:27:07,544 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 5 states.
[2021-10-11 00:27:07,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:07,620 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions.
[2021-10-11 00:27:07,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-10-11 00:27:07,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11
[2021-10-11 00:27:07,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:07,623 INFO L225 Difference]: With dead ends: 24
[2021-10-11 00:27:07,623 INFO L226 Difference]: Without dead ends: 20
[2021-10-11 00:27:07,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-10-11 00:27:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2021-10-11 00:27:07,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18.
[2021-10-11 00:27:07,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states.
[2021-10-11 00:27:07,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions.
[2021-10-11 00:27:07,638 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 11
[2021-10-11 00:27:07,639 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:07,639 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions.
[2021-10-11 00:27:07,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2021-10-11 00:27:07,640 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions.
[2021-10-11 00:27:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-10-11 00:27:07,642 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:07,642 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:07,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-10-11 00:27:07,643 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:07,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:07,647 INFO L82 PathProgramCache]: Analyzing trace with hash -42544313, now seen corresponding path program 1 times
[2021-10-11 00:27:07,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:07,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590768187]
[2021-10-11 00:27:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:07,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9
[2021-10-11 00:27:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-11 00:27:07,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590768187]
[2021-10-11 00:27:07,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032297865]
[2021-10-11 00:27:07,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:07,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:07,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-11 00:27:07,875 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2021-10-11 00:27:08,054 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:08,054 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9
[2021-10-11 00:27:08,054 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093572493]
[2021-10-11 00:27:08,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-10-11 00:27:08,055 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:08,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-10-11 00:27:08,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2021-10-11 00:27:08,057 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 9 states.
[2021-10-11 00:27:08,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:08,181 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions.
[2021-10-11 00:27:08,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-10-11 00:27:08,182 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23
[2021-10-11 00:27:08,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:08,184 INFO L225 Difference]: With dead ends: 35
[2021-10-11 00:27:08,184 INFO L226 Difference]: Without dead ends: 20
[2021-10-11 00:27:08,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156
[2021-10-11 00:27:08,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2021-10-11 00:27:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2021-10-11 00:27:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2021-10-11 00:27:08,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions.
[2021-10-11 00:27:08,192 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 23
[2021-10-11 00:27:08,192 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:08,192 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions.
[2021-10-11 00:27:08,192 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states.
[2021-10-11 00:27:08,192 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions.
[2021-10-11 00:27:08,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-10-11 00:27:08,194 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:08,194 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:08,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2
[2021-10-11 00:27:08,422 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:08,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash 170813287, now seen corresponding path program 1 times
[2021-10-11 00:27:08,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:08,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545618690]
[2021-10-11 00:27:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:08,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:08,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:08,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:08,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:08,596 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-10-11 00:27:08,601 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545618690]
[2021-10-11 00:27:08,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337631225]
[2021-10-11 00:27:08,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:08,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-10-11 00:27:08,660 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:08,727 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2021-10-11 00:27:08,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:08,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8
[2021-10-11 00:27:08,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932975706]
[2021-10-11 00:27:08,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-10-11 00:27:08,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:08,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-10-11 00:27:08,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-10-11 00:27:08,730 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 8 states.
[2021-10-11 00:27:08,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:08,854 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions.
[2021-10-11 00:27:08,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-10-11 00:27:08,855 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24
[2021-10-11 00:27:08,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:08,862 INFO L225 Difference]: With dead ends: 38
[2021-10-11 00:27:08,863 INFO L226 Difference]: Without dead ends: 34
[2021-10-11 00:27:08,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72
[2021-10-11 00:27:08,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states.
[2021-10-11 00:27:08,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34.
[2021-10-11 00:27:08,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states.
[2021-10-11 00:27:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions.
[2021-10-11 00:27:08,876 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 24
[2021-10-11 00:27:08,876 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:08,876 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions.
[2021-10-11 00:27:08,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2021-10-11 00:27:08,877 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions.
[2021-10-11 00:27:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2021-10-11 00:27:08,879 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:08,879 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:09,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:09,081 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:09,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:09,082 INFO L82 PathProgramCache]: Analyzing trace with hash -187634876, now seen corresponding path program 2 times
[2021-10-11 00:27:09,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:09,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4574732]
[2021-10-11 00:27:09,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:09,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:09,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,328 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked.
[2021-10-11 00:27:09,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4574732]
[2021-10-11 00:27:09,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074450294]
[2021-10-11 00:27:09,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:09,397 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-10-11 00:27:09,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:27:09,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-11 00:27:09,401 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:09,532 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked.
[2021-10-11 00:27:09,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:09,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13
[2021-10-11 00:27:09,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472999371]
[2021-10-11 00:27:09,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-10-11 00:27:09,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:09,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-10-11 00:27:09,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156
[2021-10-11 00:27:09,535 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 13 states.
[2021-10-11 00:27:09,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:09,799 INFO L93 Difference]: Finished difference Result 69 states and 106 transitions.
[2021-10-11 00:27:09,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-10-11 00:27:09,800 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37
[2021-10-11 00:27:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:09,802 INFO L225 Difference]: With dead ends: 69
[2021-10-11 00:27:09,803 INFO L226 Difference]: Without dead ends: 38
[2021-10-11 00:27:09,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=254, Unknown=0, NotChecked=0, Total=342
[2021-10-11 00:27:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states.
[2021-10-11 00:27:09,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38.
[2021-10-11 00:27:09,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states.
[2021-10-11 00:27:09,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions.
[2021-10-11 00:27:09,830 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 37
[2021-10-11 00:27:09,830 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:09,830 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions.
[2021-10-11 00:27:09,831 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states.
[2021-10-11 00:27:09,838 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions.
[2021-10-11 00:27:09,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2021-10-11 00:27:09,843 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:09,843 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:10,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:10,062 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:10,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:10,062 INFO L82 PathProgramCache]: Analyzing trace with hash 366248375, now seen corresponding path program 3 times
[2021-10-11 00:27:10,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:10,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349456327]
[2021-10-11 00:27:10,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:10,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2021-10-11 00:27:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 22 proven. 127 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked.
[2021-10-11 00:27:10,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349456327]
[2021-10-11 00:27:10,410 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678840991]
[2021-10-11 00:27:10,410 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:10,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s)
[2021-10-11 00:27:10,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:27:10,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-10-11 00:27:10,501 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:10,687 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 41 proven. 82 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked.
[2021-10-11 00:27:10,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:10,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 12
[2021-10-11 00:27:10,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712134556]
[2021-10-11 00:27:10,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-10-11 00:27:10,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:10,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-10-11 00:27:10,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132
[2021-10-11 00:27:10,693 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 12 states.
[2021-10-11 00:27:10,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:10,866 INFO L93 Difference]: Finished difference Result 80 states and 111 transitions.
[2021-10-11 00:27:10,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-10-11 00:27:10,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79
[2021-10-11 00:27:10,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:10,870 INFO L225 Difference]: With dead ends: 80
[2021-10-11 00:27:10,870 INFO L226 Difference]: Without dead ends: 76
[2021-10-11 00:27:10,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2021-10-11 00:27:10,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states.
[2021-10-11 00:27:10,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 70.
[2021-10-11 00:27:10,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states.
[2021-10-11 00:27:10,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 98 transitions.
[2021-10-11 00:27:10,886 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 98 transitions. Word has length 79
[2021-10-11 00:27:10,886 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:10,887 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 98 transitions.
[2021-10-11 00:27:10,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states.
[2021-10-11 00:27:10,887 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions.
[2021-10-11 00:27:10,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2021-10-11 00:27:10,893 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:10,893 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:11,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:11,110 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:11,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:11,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1447005449, now seen corresponding path program 4 times
[2021-10-11 00:27:11,111 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:11,111 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766032439]
[2021-10-11 00:27:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:11,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:11,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2021-10-11 00:27:11,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2021-10-11 00:27:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:11,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:11,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2021-10-11 00:27:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:11,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,627 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 198 proven. 308 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked.
[2021-10-11 00:27:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766032439]
[2021-10-11 00:27:11,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565700160]
[2021-10-11 00:27:11,628 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:11,704 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-10-11 00:27:11,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:27:11,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 12 conjunts are in the unsatisfiable core
[2021-10-11 00:27:11,711 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 274 proven. 108 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked.
[2021-10-11 00:27:11,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:11,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 9] total 22
[2021-10-11 00:27:11,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905337624]
[2021-10-11 00:27:11,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states
[2021-10-11 00:27:11,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:11,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2021-10-11 00:27:11,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462
[2021-10-11 00:27:11,915 INFO L87 Difference]: Start difference. First operand 70 states and 98 transitions. Second operand 22 states.
[2021-10-11 00:27:12,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:12,490 INFO L93 Difference]: Finished difference Result 143 states and 252 transitions.
[2021-10-11 00:27:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states.
[2021-10-11 00:27:12,491 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 133
[2021-10-11 00:27:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:12,493 INFO L225 Difference]: With dead ends: 143
[2021-10-11 00:27:12,493 INFO L226 Difference]: Without dead ends: 66
[2021-10-11 00:27:12,497 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=266, Invalid=924, Unknown=0, NotChecked=0, Total=1190
[2021-10-11 00:27:12,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states.
[2021-10-11 00:27:12,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56.
[2021-10-11 00:27:12,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states.
[2021-10-11 00:27:12,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 67 transitions.
[2021-10-11 00:27:12,521 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 67 transitions. Word has length 133
[2021-10-11 00:27:12,521 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:12,522 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 67 transitions.
[2021-10-11 00:27:12,522 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states.
[2021-10-11 00:27:12,522 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 67 transitions.
[2021-10-11 00:27:12,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107
[2021-10-11 00:27:12,524 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:12,524 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:12,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6
[2021-10-11 00:27:12,738 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:12,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:12,738 INFO L82 PathProgramCache]: Analyzing trace with hash -292645265, now seen corresponding path program 5 times
[2021-10-11 00:27:12,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:12,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132804471]
[2021-10-11 00:27:12,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:12,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:12,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:12,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:12,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:12,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:13,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:13,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2021-10-11 00:27:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:13,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:13,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2021-10-11 00:27:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:13,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:13,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,218 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked.
[2021-10-11 00:27:13,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132804471]
[2021-10-11 00:27:13,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265755519]
[2021-10-11 00:27:13,219 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:13,309 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s)
[2021-10-11 00:27:13,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:27:13,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 63 conjunts are in the unsatisfiable core
[2021-10-11 00:27:13,326 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:13,880 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked.
[2021-10-11 00:27:13,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:13,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 20
[2021-10-11 00:27:13,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554805900]
[2021-10-11 00:27:13,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-10-11 00:27:13,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:13,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-10-11 00:27:13,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380
[2021-10-11 00:27:13,883 INFO L87 Difference]: Start difference. First operand 56 states and 67 transitions. Second operand 20 states.
[2021-10-11 00:27:14,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:14,089 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions.
[2021-10-11 00:27:14,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-10-11 00:27:14,090 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 106
[2021-10-11 00:27:14,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:14,092 INFO L225 Difference]: With dead ends: 69
[2021-10-11 00:27:14,092 INFO L226 Difference]: Without dead ends: 65
[2021-10-11 00:27:14,093 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 141 SyntacticMatches, 9 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380
[2021-10-11 00:27:14,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states.
[2021-10-11 00:27:14,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 64.
[2021-10-11 00:27:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states.
[2021-10-11 00:27:14,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 77 transitions.
[2021-10-11 00:27:14,104 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 77 transitions. Word has length 106
[2021-10-11 00:27:14,104 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:14,104 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 77 transitions.
[2021-10-11 00:27:14,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states.
[2021-10-11 00:27:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions.
[2021-10-11 00:27:14,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134
[2021-10-11 00:27:14,107 INFO L414 BasicCegarLoop]: Found error trace
[2021-10-11 00:27:14,107 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 15, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1]
[2021-10-11 00:27:14,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:14,318 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2021-10-11 00:27:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:27:14,318 INFO L82 PathProgramCache]: Analyzing trace with hash 978812239, now seen corresponding path program 6 times
[2021-10-11 00:27:14,318 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:27:14,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461322513]
[2021-10-11 00:27:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:27:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2
[2021-10-11 00:27:14,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37
[2021-10-11 00:27:14,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64
[2021-10-11 00:27:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91
[2021-10-11 00:27:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3
[2021-10-11 00:27:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10
[2021-10-11 00:27:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23
[2021-10-11 00:27:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,670 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 230 proven. 170 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked.
[2021-10-11 00:27:14,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461322513]
[2021-10-11 00:27:14,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099156952]
[2021-10-11 00:27:14,671 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:14,794 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s)
[2021-10-11 00:27:14,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-10-11 00:27:14,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 14 conjunts are in the unsatisfiable core
[2021-10-11 00:27:14,806 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:27:15,083 INFO L134 CoverageAnalysis]: Checked inductivity of 933 backedges. 131 proven. 302 refuted. 0 times theorem prover too weak. 500 trivial. 0 not checked.
[2021-10-11 00:27:15,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-10-11 00:27:15,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 17
[2021-10-11 00:27:15,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595556846]
[2021-10-11 00:27:15,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states
[2021-10-11 00:27:15,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-10-11 00:27:15,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2021-10-11 00:27:15,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272
[2021-10-11 00:27:15,090 INFO L87 Difference]: Start difference. First operand 64 states and 77 transitions. Second operand 17 states.
[2021-10-11 00:27:15,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-10-11 00:27:15,405 INFO L93 Difference]: Finished difference Result 124 states and 166 transitions.
[2021-10-11 00:27:15,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-10-11 00:27:15,406 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 133
[2021-10-11 00:27:15,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-10-11 00:27:15,407 INFO L225 Difference]: With dead ends: 124
[2021-10-11 00:27:15,407 INFO L226 Difference]: Without dead ends: 0
[2021-10-11 00:27:15,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552
[2021-10-11 00:27:15,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2021-10-11 00:27:15,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2021-10-11 00:27:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2021-10-11 00:27:15,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2021-10-11 00:27:15,410 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133
[2021-10-11 00:27:15,410 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-10-11 00:27:15,410 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-11 00:27:15,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states.
[2021-10-11 00:27:15,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2021-10-11 00:27:15,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2021-10-11 00:27:15,637 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-10-11 00:27:15,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2021-10-11 00:27:16,211 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 27
[2021-10-11 00:27:16,215 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2021-10-11 00:27:16,215 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed.
[2021-10-11 00:27:16,216 INFO L258 CegarLoopResult]: At program point L31(lines 25 32) the Hoare annotation is: (<= 5 ULTIMATE.start_main_~x~0)
[2021-10-11 00:27:16,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed.
[2021-10-11 00:27:16,216 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed.
[2021-10-11 00:27:16,216 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2021-10-11 00:27:16,216 INFO L262 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed.
[2021-10-11 00:27:16,216 INFO L258 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (and (<= 5 ULTIMATE.start_main_~x~0) (<= ULTIMATE.start_main_~x~0 5))
[2021-10-11 00:27:16,217 INFO L262 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed.
[2021-10-11 00:27:16,217 INFO L262 CegarLoopResult]: For program point L28-2(lines 28 30) no Hoare annotation was computed.
[2021-10-11 00:27:16,217 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 29) no Hoare annotation was computed.
[2021-10-11 00:27:16,217 INFO L262 CegarLoopResult]: For program point fiboEXIT(lines 7 15) no Hoare annotation was computed.
[2021-10-11 00:27:16,217 INFO L262 CegarLoopResult]: For program point fiboFINAL(lines 7 15) no Hoare annotation was computed.
[2021-10-11 00:27:16,217 INFO L258 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (< 1 fibo_~n) (= fibo_~n |fibo_#in~n|))
[2021-10-11 00:27:16,218 INFO L262 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed.
[2021-10-11 00:27:16,218 INFO L258 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (and (< 1 fibo_~n) (or (and (<= |fibo_#t~ret7| 2) (<= fibo_~n 4) (<= 2 |fibo_#t~ret7|) (<= 4 |fibo_#in~n|)) (and (<= 5 |fibo_#in~n|) (<= |fibo_#t~ret7| 3) (<= 3 |fibo_#t~ret7|)) (and (<= |fibo_#t~ret7| 1) (<= 1 |fibo_#t~ret7|) (<= |fibo_#in~n| 3)) (<= 6 |fibo_#in~n|)) (= fibo_~n |fibo_#in~n|))
[2021-10-11 00:27:16,218 INFO L262 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed.
[2021-10-11 00:27:16,218 INFO L262 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed.
[2021-10-11 00:27:16,218 INFO L262 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed.
[2021-10-11 00:27:16,218 INFO L265 CegarLoopResult]: At program point fiboENTRY(lines 7 15) the Hoare annotation is: true
[2021-10-11 00:27:16,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:27:16 BoogieIcfgContainer
[2021-10-11 00:27:16,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-10-11 00:27:16,233 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:27:16,233 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:27:16,234 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-11 00:27:16,234 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:27:06" (3/4) ...
[2021-10-11 00:27:16,238 INFO L137 WitnessPrinter]: Generating witness for correct program
[2021-10-11 00:27:16,245 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibo
[2021-10-11 00:27:16,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges
[2021-10-11 00:27:16,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges
[2021-10-11 00:27:16,249 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-11 00:27:16,250 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges
[2021-10-11 00:27:16,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3bf4582-d51c-455a-81ec-34cc951131bc/bin/uautomizer-Z5i5R5N3CC/witness.graphml
[2021-10-11 00:27:16,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:27:16,290 INFO L168 Benchmark]: Toolchain (without parser) took 10170.12 ms. Allocated memory was 102.8 MB in the beginning and 195.0 MB in the end (delta: 92.3 MB). Free memory was 72.2 MB in the beginning and 96.3 MB in the end (delta: -24.1 MB). Peak memory consumption was 67.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,291 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory was 61.6 MB in the beginning and 61.6 MB in the end (delta: 47.2 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,291 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.94 ms. Allocated memory is still 102.8 MB. Free memory was 72.0 MB in the beginning and 79.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,292 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,293 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 76.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,293 INFO L168 Benchmark]: RCFGBuilder took 353.77 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 65.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,294 INFO L168 Benchmark]: TraceAbstraction took 9353.04 ms. Allocated memory was 102.8 MB in the beginning and 195.0 MB in the end (delta: 92.3 MB). Free memory was 64.9 MB in the beginning and 98.5 MB in the end (delta: -33.5 MB). Peak memory consumption was 83.2 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,294 INFO L168 Benchmark]: Witness Printer took 55.90 ms. Allocated memory is still 195.0 MB. Free memory was 98.5 MB in the beginning and 96.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
[2021-10-11 00:27:16,297 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.32 ms. Allocated memory is still 102.8 MB. Free memory was 61.6 MB in the beginning and 61.6 MB in the end (delta: 47.2 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 324.94 ms. Allocated memory is still 102.8 MB. Free memory was 72.0 MB in the beginning and 79.2 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 102.8 MB. Free memory was 79.2 MB in the beginning and 77.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 32.20 ms. Allocated memory is still 102.8 MB. Free memory was 77.9 MB in the beginning and 76.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* RCFGBuilder took 353.77 ms. Allocated memory is still 102.8 MB. Free memory was 76.8 MB in the beginning and 65.3 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* TraceAbstraction took 9353.04 ms. Allocated memory was 102.8 MB in the beginning and 195.0 MB in the end (delta: 92.3 MB). Free memory was 64.9 MB in the beginning and 98.5 MB in the end (delta: -33.5 MB). Peak memory consumption was 83.2 MB. Max. memory is 16.1 GB.
* Witness Printer took 55.90 ms. Allocated memory is still 195.0 MB. Free memory was 98.5 MB in the beginning and 96.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 29]: call to reach_error is unreachable
For all program executions holds that call to reach_error is unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 25]: Loop Invariant
Derived loop invariant: 5 <= x
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 9, TraceHistogramMax: 19, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 176 SDtfs, 313 SDslu, 773 SDs, 0 SdLazy, 1175 SolverSat, 328 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 826 GetRequests, 689 SyntacticMatches, 10 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 128 PreInvPairs, 195 NumberOfFragments, 62 HoareAnnotationTreeSize, 128 FomulaSimplifications, 561 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 835 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1091 NumberOfCodeBlocks, 1061 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 1075 ConstructedInterpolants, 0 QuantifiedInterpolants, 252751 SizeOfPredicates, 28 NumberOfNonLiveVariables, 1279 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 16 InterpolantComputations, 2 PerfectInterpolantSequences, 4092/5608 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
RESULT: Ultimate proved your program to be correct!
Received shutdown request...