./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c --full-output --architecture 64bit
--------------------------------------------------------------------------------
Checking for termination
Using default analysis
Version 7b2dab56
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/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_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8c9656c5ef8dceb7982043d8db455c38d2f23147
..................................................................................................................................................................................................................................................................................................................................................................................................................
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 00:32:57,873 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-10-11 00:32:57,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-10-11 00:32:57,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-10-11 00:32:57,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-10-11 00:32:57,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-10-11 00:32:57,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-10-11 00:32:57,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-10-11 00:32:57,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-10-11 00:32:57,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-10-11 00:32:57,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-10-11 00:32:57,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-10-11 00:32:57,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-10-11 00:32:57,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-10-11 00:32:57,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-10-11 00:32:57,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-10-11 00:32:57,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-10-11 00:32:57,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-10-11 00:32:57,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-10-11 00:32:57,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-10-11 00:32:57,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-10-11 00:32:57,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-10-11 00:32:57,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-10-11 00:32:57,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-10-11 00:32:57,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-10-11 00:32:57,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-10-11 00:32:57,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-10-11 00:32:57,993 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-10-11 00:32:57,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-10-11 00:32:57,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-10-11 00:32:57,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-10-11 00:32:57,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-10-11 00:32:58,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-10-11 00:32:58,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-10-11 00:32:58,003 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-10-11 00:32:58,004 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-10-11 00:32:58,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-10-11 00:32:58,005 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-10-11 00:32:58,005 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-10-11 00:32:58,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-10-11 00:32:58,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-10-11 00:32:58,010 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-64bit-Automizer_Default.epf
[2021-10-11 00:32:58,048 INFO L113 SettingsManager]: Loading preferences was successful
[2021-10-11 00:32:58,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-10-11 00:32:58,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-10-11 00:32:58,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-10-11 00:32:58,050 INFO L138 SettingsManager]: * Use SBE=true
[2021-10-11 00:32:58,051 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2021-10-11 00:32:58,051 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2021-10-11 00:32:58,051 INFO L138 SettingsManager]: * Use old map elimination=false
[2021-10-11 00:32:58,051 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false
[2021-10-11 00:32:58,052 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true
[2021-10-11 00:32:58,052 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2021-10-11 00:32:58,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-10-11 00:32:58,052 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false
[2021-10-11 00:32:58,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-10-11 00:32:58,052 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-10-11 00:32:58,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2021-10-11 00:32:58,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-10-11 00:32:58,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-10-11 00:32:58,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-10-11 00:32:58,054 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-10-11 00:32:58,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-10-11 00:32:58,055 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2021-10-11 00:32:58,055 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
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_cbe2c071-0795-48b0-9dd0-f6037051adcd/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c9656c5ef8dceb7982043d8db455c38d2f23147
[2021-10-11 00:32:58,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-10-11 00:32:58,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-10-11 00:32:58,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-10-11 00:32:58,372 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-10-11 00:32:58,373 INFO L275 PluginConnector]: CDTParser initialized
[2021-10-11 00:32:58,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/termination-numeric/TerminatorRec02.c
[2021-10-11 00:32:58,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/data/e389298df/d74edad85a4141618b488554b8c7cbfb/FLAGadd7d325a
[2021-10-11 00:32:58,870 INFO L306 CDTParser]: Found 1 translation units.
[2021-10-11 00:32:58,870 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/sv-benchmarks/c/termination-numeric/TerminatorRec02.c
[2021-10-11 00:32:58,877 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/data/e389298df/d74edad85a4141618b488554b8c7cbfb/FLAGadd7d325a
[2021-10-11 00:32:59,265 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/data/e389298df/d74edad85a4141618b488554b8c7cbfb
[2021-10-11 00:32:59,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-10-11 00:32:59,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-10-11 00:32:59,271 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-10-11 00:32:59,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-10-11 00:32:59,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-10-11 00:32:59,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@219669d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59, skipping insertion in model container
[2021-10-11 00:32:59,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-10-11 00:32:59,300 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-10-11 00:32:59,430 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:32:59,434 INFO L203 MainTranslator]: Completed pre-run
[2021-10-11 00:32:59,466 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-10-11 00:32:59,488 INFO L208 MainTranslator]: Completed translation
[2021-10-11 00:32:59,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59 WrapperNode
[2021-10-11 00:32:59,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-10-11 00:32:59,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-10-11 00:32:59,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-10-11 00:32:59,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-10-11 00:32:59,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-10-11 00:32:59,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-10-11 00:32:59,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-10-11 00:32:59,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-10-11 00:32:59,531 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
[2021-10-11 00:32:59,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-10-11 00:32:59,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-10-11 00:32:59,541 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-10-11 00:32:59,541 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-10-11 00:32:59,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (1/1) ...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:32:59,624 INFO L130 BoogieDeclarations]: Found specification of procedure fact
[2021-10-11 00:32:59,624 INFO L138 BoogieDeclarations]: Found implementation of procedure fact
[2021-10-11 00:32:59,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-10-11 00:32:59,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-10-11 00:32:59,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-10-11 00:32:59,790 INFO L299 CfgBuilder]: Removed 4 assume(true) statements.
[2021-10-11 00:32:59,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:59 BoogieIcfgContainer
[2021-10-11 00:32:59,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-10-11 00:32:59,794 INFO L113 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2021-10-11 00:32:59,794 INFO L271 PluginConnector]: Initializing BuchiAutomizer...
[2021-10-11 00:32:59,798 INFO L275 PluginConnector]: BuchiAutomizer initialized
[2021-10-11 00:32:59,799 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-11 00:32:59,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:32:59" (1/3) ...
[2021-10-11 00:32:59,801 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d05998e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:32:59, skipping insertion in model container
[2021-10-11 00:32:59,802 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-11 00:32:59,802 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:32:59" (2/3) ...
[2021-10-11 00:32:59,802 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d05998e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:32:59, skipping insertion in model container
[2021-10-11 00:32:59,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2021-10-11 00:32:59,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:59" (3/3) ...
[2021-10-11 00:32:59,804 INFO L389 chiAutomizerObserver]: Analyzing ICFG TerminatorRec02.c
[2021-10-11 00:32:59,854 INFO L359 BuchiCegarLoop]: Interprodecural is true
[2021-10-11 00:32:59,854 INFO L360 BuchiCegarLoop]: Hoare is false
[2021-10-11 00:32:59,855 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2021-10-11 00:32:59,855 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2021-10-11 00:32:59,855 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-10-11 00:32:59,855 INFO L364 BuchiCegarLoop]: Difference is false
[2021-10-11 00:32:59,855 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-10-11 00:32:59,855 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop========
[2021-10-11 00:32:59,867 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states.
[2021-10-11 00:32:59,890 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-10-11 00:32:59,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-11 00:32:59,891 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-11 00:32:59,900 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-11 00:32:59,900 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-11 00:32:59,900 INFO L427 BuchiCegarLoop]: ======== Iteration 1============
[2021-10-11 00:32:59,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states.
[2021-10-11 00:32:59,902 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3
[2021-10-11 00:32:59,902 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2021-10-11 00:32:59,903 INFO L119 BuchiIsEmpty]: Starting construction of run
[2021-10-11 00:32:59,903 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1]
[2021-10-11 00:32:59,903 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1]
[2021-10-11 00:32:59,912 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~ret4, main_~x~0, main_~y~1, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 3#L27true assume !(main_~x~0 < 0);main_~y~1 := main_#t~nondet2;havoc main_#t~nondet2; 8#L30true assume !(main_~y~1 < 0);main_~z~0 := main_#t~nondet3;havoc main_#t~nondet3; 12#L33true call main_#t~ret4 := fact(main_~x~0);< 9#factENTRYtrue
[2021-10-11 00:32:59,912 INFO L796 eck$LassoCheckResult]: Loop: 9#factENTRYtrue ~x := #in~x; 4#L18true assume ~x > 1; 7#L19true call #t~ret0 := fact(~x - 1);< 9#factENTRYtrue
[2021-10-11 00:32:59,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:32:59,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1205710, now seen corresponding path program 1 times
[2021-10-11 00:32:59,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:32:59,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502638910]
[2021-10-11 00:32:59,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:33:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:33:00,019 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:33:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:33:00,043 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:33:00,063 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:33:00,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:33:00,071 INFO L82 PathProgramCache]: Analyzing trace with hash 29909, now seen corresponding path program 1 times
[2021-10-11 00:33:00,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:33:00,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756936635]
[2021-10-11 00:33:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:33:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:33:00,089 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:33:00,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:33:00,098 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:33:00,103 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:33:00,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:33:00,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1559568360, now seen corresponding path program 1 times
[2021-10-11 00:33:00,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-10-11 00:33:00,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772093096]
[2021-10-11 00:33:00,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-10-11 00:33:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:33:00,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:33:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-10-11 00:33:00,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-10-11 00:33:00,159 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-10-11 00:33:00,343 INFO L210 LassoAnalysis]: Preferences:
[2021-10-11 00:33:00,344 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-11 00:33:00,344 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-11 00:33:00,345 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-11 00:33:00,345 INFO L129 ssoRankerPreferences]: Use exernal solver: true
[2021-10-11 00:33:00,345 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,345 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-11 00:33:00,345 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-11 00:33:00,346 INFO L133 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop
[2021-10-11 00:33:00,346 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-11 00:33:00,346 INFO L274 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-11 00:33:00,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,529 INFO L292 LassoAnalysis]: Preprocessing complete.
[2021-10-11 00:33:00,530 INFO L404 LassoAnalysis]: Checking for nontermination...
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-11 00:33:00,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-11 00:33:00,541 INFO L160 nArgumentSynthesizer]: Using integer mode.
Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,565 INFO L437 LassoAnalysis]: Proved nontermination for one component.
[2021-10-11 00:33:00,565 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fact_~y~0=0} Honda state: {fact_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: []
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,604 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true
[2021-10-11 00:33:00,604 INFO L160 nArgumentSynthesizer]: Using integer mode.
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true
[2021-10-11 00:33:00,656 INFO L160 nArgumentSynthesizer]: Using integer mode.
[2021-10-11 00:33:00,695 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists.
[2021-10-11 00:33:00,696 INFO L210 LassoAnalysis]: Preferences:
[2021-10-11 00:33:00,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false
[2021-10-11 00:33:00,697 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true
[2021-10-11 00:33:00,697 INFO L128 ssoRankerPreferences]: Term annotations enabled: false
[2021-10-11 00:33:00,697 INFO L129 ssoRankerPreferences]: Use exernal solver: false
[2021-10-11 00:33:00,697 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,697 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false
[2021-10-11 00:33:00,697 INFO L132 ssoRankerPreferences]: Path of dumped script:
[2021-10-11 00:33:00,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: TerminatorRec02.c_Iteration1_Loop
[2021-10-11 00:33:00,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank
[2021-10-11 00:33:00,698 INFO L274 LassoAnalysis]: Starting lasso preprocessing...
[2021-10-11 00:33:00,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true
[2021-10-11 00:33:00,809 INFO L292 LassoAnalysis]: Preprocessing complete.
[2021-10-11 00:33:00,816 INFO L489 LassoAnalysis]: Using template 'affine'.
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,844 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings:
Termination analysis: LINEAR_WITH_GUESSES
Number of strict supporting invariants: 0
Number of non-strict supporting invariants: 1
Consider only non-deceasing supporting invariants: true
Simplify termination arguments: true
Simplify supporting invariants: trueOverapproximate stem: false
[2021-10-11 00:33:00,854 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-11 00:33:00,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-11 00:33:00,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-11 00:33:00,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-11 00:33:00,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-11 00:33:00,869 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-11 00:33:00,870 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
[2021-10-11 00:33:00,885 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings.
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-11 00:33:00,958 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings:
Termination analysis: LINEAR_WITH_GUESSES
Number of strict supporting invariants: 0
Number of non-strict supporting invariants: 1
Consider only non-deceasing supporting invariants: true
Simplify termination arguments: true
Simplify supporting invariants: trueOverapproximate stem: false
[2021-10-11 00:33:00,960 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-11 00:33:00,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-11 00:33:00,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-11 00:33:00,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-11 00:33:00,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-11 00:33:00,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-11 00:33:00,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:00,965 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings.
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2021-10-11 00:33:01,018 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings:
Termination analysis: LINEAR_WITH_GUESSES
Number of strict supporting invariants: 0
Number of non-strict supporting invariants: 1
Consider only non-deceasing supporting invariants: true
Simplify termination arguments: true
Simplify supporting invariants: trueOverapproximate stem: false
[2021-10-11 00:33:01,020 INFO L338 nArgumentSynthesizer]: Template has degree 0.
[2021-10-11 00:33:01,020 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation.
[2021-10-11 00:33:01,021 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts
[2021-10-11 00:33:01,021 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts
[2021-10-11 00:33:01,021 INFO L205 nArgumentSynthesizer]: 2 template conjuncts.
[2021-10-11 00:33:01,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications.
[2021-10-11 00:33:01,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added.
Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:01,035 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify.
[2021-10-11 00:33:01,044 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver.
[2021-10-11 00:33:01,044 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero.
No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe2c071-0795-48b0-9dd0-f6037051adcd/bin/uautomizer-Z5i5R5N3CC/z3
Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2021-10-11 00:33:01,077 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants...
[2021-10-11 00:33:01,077 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0.
[2021-10-11 00:33:01,077 INFO L510 LassoAnalysis]: Proved termination.
[2021-10-11 00:33:01,078 INFO L512 LassoAnalysis]: Termination argument consisting of:
Ranking function f(fact_#in~x) = 1*fact_#in~x
Supporting invariants []
[2021-10-11 00:33:01,102 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed
[2021-10-11 00:33:01,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-10-11 00:33:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:33:01,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-10-11 00:33:01,155 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:33:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-10-11 00:33:01,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-10-11 00:33:01,179 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-10-11 00:33:01,223 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 00:33:01,241 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates
[2021-10-11 00:33:01,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states.
[2021-10-11 00:33:01,361 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 12 states.
[2021-10-11 00:33:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states
[2021-10-11 00:33:01,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states.
[2021-10-11 00:33:01,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions.
[2021-10-11 00:33:01,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 3 letters.
[2021-10-11 00:33:01,382 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-11 00:33:01,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters.
[2021-10-11 00:33:01,382 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-11 00:33:01,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 4 letters. Loop has 6 letters.
[2021-10-11 00:33:01,383 INFO L116 BuchiAccepts]: Finished buchiAccepts.
[2021-10-11 00:33:01,384 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions.
[2021-10-11 00:33:01,388 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-11 00:33:01,399 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions.
[2021-10-11 00:33:01,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0
[2021-10-11 00:33:01,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0
[2021-10-11 00:33:01,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions.
[2021-10-11 00:33:01,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic.
[2021-10-11 00:33:01,404 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-11 00:33:01,404 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-11 00:33:01,405 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions.
[2021-10-11 00:33:01,405 INFO L427 BuchiCegarLoop]: ======== Iteration 2============
[2021-10-11 00:33:01,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions.
[2021-10-11 00:33:01,405 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0
[2021-10-11 00:33:01,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true
[2021-10-11 00:33:01,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:33:01 BoogieIcfgContainer
[2021-10-11 00:33:01,412 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2021-10-11 00:33:01,413 INFO L113 PluginConnector]: ------------------------Witness Printer----------------------------
[2021-10-11 00:33:01,413 INFO L271 PluginConnector]: Initializing Witness Printer...
[2021-10-11 00:33:01,413 INFO L275 PluginConnector]: Witness Printer initialized
[2021-10-11 00:33:01,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:32:59" (3/4) ...
[2021-10-11 00:33:01,418 INFO L140 WitnessPrinter]: No result that supports witness generation found
[2021-10-11 00:33:01,418 INFO L132 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2021-10-11 00:33:01,420 INFO L168 Benchmark]: Toolchain (without parser) took 2148.90 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 58.0 MB in the beginning and 87.1 MB in the end (delta: -29.0 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,421 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 65.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.41 ms. Allocated memory is still 92.3 MB. Free memory was 57.8 MB in the beginning and 69.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.99 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,423 INFO L168 Benchmark]: Boogie Preprocessor took 18.43 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 68.0 MB in the end (delta: 451.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,423 INFO L168 Benchmark]: RCFGBuilder took 252.19 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 58.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,424 INFO L168 Benchmark]: BuchiAutomizer took 1618.25 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 58.4 MB in the beginning and 87.1 MB in the end (delta: -28.7 MB). There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,425 INFO L168 Benchmark]: Witness Printer took 5.16 ms. Allocated memory is still 115.3 MB. Free memory is still 87.1 MB. There was no memory consumed. Max. memory is 16.1 GB.
[2021-10-11 00:33:01,429 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 65.1 MB in the beginning and 65.1 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB.
* CACSL2BoogieTranslator took 218.41 ms. Allocated memory is still 92.3 MB. Free memory was 57.8 MB in the beginning and 69.9 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB.
* Boogie Procedure Inliner took 29.99 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Boogie Preprocessor took 18.43 ms. Allocated memory is still 92.3 MB. Free memory was 68.5 MB in the beginning and 68.0 MB in the end (delta: 451.8 kB). There was no memory consumed. Max. memory is 16.1 GB.
* RCFGBuilder took 252.19 ms. Allocated memory is still 92.3 MB. Free memory was 67.7 MB in the beginning and 58.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB.
* BuchiAutomizer took 1618.25 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 58.4 MB in the beginning and 87.1 MB in the end (delta: -28.7 MB). There was no memory consumed. Max. memory is 16.1 GB.
* Witness Printer took 5.16 ms. Allocated memory is still 115.3 MB. Free memory is still 87.1 MB. There was no memory consumed. Max. memory is 16.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 4 locations.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 13 SDslu, 2 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s
- TerminationAnalysisResult: Termination proven
Buchi Automizer proved that your program is terminating
RESULT: Ultimate proved your program to be correct!
Received shutdown request...