./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Benghazi.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Benghazi.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer --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 2b89ce5b96ce55081609675201b2a9a116c2941a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:49:40,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:49:40,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:49:40,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:49:40,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:49:40,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:49:40,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:49:40,063 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:49:40,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:49:40,071 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:49:40,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:49:40,074 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:49:40,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:49:40,076 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:49:40,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:49:40,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:49:40,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:49:40,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:49:40,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:49:40,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:49:40,089 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:49:40,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:49:40,094 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:49:40,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:49:40,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:49:40,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:49:40,097 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:49:40,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:49:40,098 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:49:40,099 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:49:40,099 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:49:40,100 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:49:40,101 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:49:40,101 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:49:40,102 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:49:40,102 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:49:40,103 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:49:40,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:49:40,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:49:40,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:49:40,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:49:40,106 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:49:40,131 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:49:40,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:49:40,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:49:40,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:49:40,133 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:49:40,133 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:49:40,133 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:49:40,133 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:49:40,134 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:49:40,134 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:49:40,134 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:49:40,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:49:40,134 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:49:40,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:49:40,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:49:40,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:49:40,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:49:40,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:49:40,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:49:40,136 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:49:40,136 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:49:40,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:49:40,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:49:40,137 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:49:40,137 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:49:40,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:49:40,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:49:40,138 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:49:40,138 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:49:40,139 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer 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 -> 2b89ce5b96ce55081609675201b2a9a116c2941a [2019-11-25 08:49:40,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:49:40,282 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:49:40,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:49:40,286 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:49:40,286 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:49:40,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Benghazi.c [2019-11-25 08:49:40,346 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/data/6193ffbc9/00ae5888e7b64d3881ad3ac7fd63aaea/FLAG0fc8c5976 [2019-11-25 08:49:40,733 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:49:40,734 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/sv-benchmarks/c/termination-crafted/Benghazi.c [2019-11-25 08:49:40,739 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/data/6193ffbc9/00ae5888e7b64d3881ad3ac7fd63aaea/FLAG0fc8c5976 [2019-11-25 08:49:41,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/data/6193ffbc9/00ae5888e7b64d3881ad3ac7fd63aaea [2019-11-25 08:49:41,171 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:49:41,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:49:41,177 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:41,177 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:49:41,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:49:41,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,182 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@764562e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41, skipping insertion in model container [2019-11-25 08:49:41,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:49:41,211 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:49:41,387 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:41,392 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:49:41,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:49:41,481 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:49:41,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41 WrapperNode [2019-11-25 08:49:41,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:49:41,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:41,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:49:41,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:49:41,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:49:41,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:49:41,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:49:41,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:49:41,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... [2019-11-25 08:49:41,523 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:49:41,524 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:49:41,524 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:49:41,524 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:49:41,525 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/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 [2019-11-25 08:49:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:49:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:49:41,717 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:49:41,717 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:49:41,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:41 BoogieIcfgContainer [2019-11-25 08:49:41,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:49:41,719 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:49:41,719 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:49:41,722 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:49:41,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:41,723 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:49:41" (1/3) ... [2019-11-25 08:49:41,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72fc8cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:41, skipping insertion in model container [2019-11-25 08:49:41,724 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:41,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:49:41" (2/3) ... [2019-11-25 08:49:41,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72fc8cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:49:41, skipping insertion in model container [2019-11-25 08:49:41,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:49:41,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:41" (3/3) ... [2019-11-25 08:49:41,728 INFO L371 chiAutomizerObserver]: Analyzing ICFG Benghazi.c [2019-11-25 08:49:41,773 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:49:41,773 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:49:41,774 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:49:41,774 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:49:41,774 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:49:41,774 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:49:41,774 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:49:41,775 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:49:41,788 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:49:41,808 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:49:41,808 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:41,808 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:41,814 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:49:41,814 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:49:41,814 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:49:41,814 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:49:41,815 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:49:41,815 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:49:41,815 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:49:41,815 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:49:41,816 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:49:41,822 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~d1~0 := 73;main_~d2~0 := 74;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L22-2true [2019-11-25 08:49:41,823 INFO L796 eck$LassoCheckResult]: Loop: 8#L22-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 8#L22-2true [2019-11-25 08:49:41,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:41,828 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:49:41,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:41,837 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693611244] [2019-11-25 08:49:41,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:41,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:41,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:41,935 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:41,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:41,936 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-25 08:49:41,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:41,937 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102511507] [2019-11-25 08:49:41,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:41,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:41,969 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:41,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:41,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-25 08:49:41,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:49:41,971 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971757688] [2019-11-25 08:49:41,971 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:49:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:49:41,988 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:49:42,057 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:42,058 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:42,058 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:42,058 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:42,058 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:49:42,058 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:42,059 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:42,059 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:42,059 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2019-11-25 08:49:42,059 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:42,059 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:42,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:42,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:42,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:42,277 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:42,278 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 2 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:42,284 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:42,284 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:42,293 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:49:42,293 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/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 [2019-11-25 08:49:42,301 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:42,301 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:42,306 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:49:42,306 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/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 [2019-11-25 08:49:42,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:49:42,317 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/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 [2019-11-25 08:49:42,333 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:49:42,333 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:49:47,571 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:49:47,574 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:49:47,574 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:49:47,574 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:49:47,574 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:49:47,574 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:49:47,574 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:49:47,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:49:47,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi.c_Iteration1_Loop [2019-11-25 08:49:47,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:49:47,575 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:49:47,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:47,589 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:47,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:49:47,716 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:49:47,721 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,734 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 [2019-11-25 08:49:47,737 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:47,743 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:47,743 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:47,748 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,765 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 [2019-11-25 08:49:47,767 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,767 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,768 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,768 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:47,771 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:49:47,771 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:49:47,777 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:47,789 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 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,791 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:47,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:49:47,795 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:49:47,795 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:47,801 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-25 08:49:47,803 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:47,813 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 [2019-11-25 08:49:47,815 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,816 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-25 08:49:47,820 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-25 08:49:47,820 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,828 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,842 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 [2019-11-25 08:49:47,844 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,845 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-25 08:49:47,853 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-25 08:49:47,853 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-25 08:49:47,861 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:47,870 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 [2019-11-25 08:49:47,872 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,872 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:47,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,873 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,873 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,877 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-25 08:49:47,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:49:47,884 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-25 08:49:47,886 INFO L489 LassoAnalysis]: Using template '3-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:47,898 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 [2019-11-25 08:49:47,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,901 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-25 08:49:47,906 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-25 08:49:47,906 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,912 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:47,926 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 [2019-11-25 08:49:47,928 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,929 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,929 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,929 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-25 08:49:47,933 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-25 08:49:47,934 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,940 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:47,958 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 [2019-11-25 08:49:47,961 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:49:47,961 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:49:47,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:49:47,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:49:47,961 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2019-11-25 08:49:47,966 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-25 08:49:47,966 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:47,977 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:49:47,995 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-25 08:49:47,995 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a51c8a41-81fa-492f-803c-162810d274ed/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:49:48,006 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:49:48,006 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:49:48,007 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:49:48,007 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d2~0 - 1*ULTIMATE.start_main_~d1~0 f1 = -1*ULTIMATE.start_main_~d1~0 + 2*ULTIMATE.start_main_~x~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-11-25 08:49:48,012 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:49:48,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:49:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:48,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:49:48,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:49:48,073 WARN L253 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-25 08:49:48,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:49:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:49:48,089 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:49:48,090 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-11-25 08:49:48,126 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2019-11-25 08:49:48,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-25 08:49:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:49:48,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-11-25 08:49:48,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-25 08:49:48,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:48,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-25 08:49:48,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:48,131 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-25 08:49:48,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:49:48,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-25 08:49:48,133 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:49:48,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-25 08:49:48,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:49:48,137 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:49:48,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:49:48,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:49:48,138 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:48,138 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:48,138 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:49:48,138 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:49:48,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:49:48,139 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:49:48,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:49:48,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:49:48 BoogieIcfgContainer [2019-11-25 08:49:48,144 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:49:48,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:49:48,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:49:48,145 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:49:48,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:49:41" (3/4) ... [2019-11-25 08:49:48,148 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:49:48,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:49:48,150 INFO L168 Benchmark]: Toolchain (without parser) took 6977.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 950.1 MB in the beginning and 1.0 GB in the end (delta: -64.1 MB). Peak memory consumption was 105.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:48,151 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:48,152 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -216.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:48,152 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:48,152 INFO L168 Benchmark]: Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:48,153 INFO L168 Benchmark]: RCFGBuilder took 194.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:48,154 INFO L168 Benchmark]: BuchiAutomizer took 6425.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 132.9 MB). Peak memory consumption was 132.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:49:48,154 INFO L168 Benchmark]: Witness Printer took 3.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:49:48,157 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 169.3 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -216.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.42 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 194.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6425.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 132.9 MB). Peak memory consumption was 132.9 MB. Max. memory is 11.5 GB. * Witness Printer took 3.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 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 3-nested ranking function (if -1 * d2 + -1 * d1 > 0 then 2 else (if -1 * d1 + 2 * x + 1 > 0 then 1 else 0)), (if -1 * d2 + -1 * d1 > 0 then -1 * d2 + -1 * d1 else (if -1 * d1 + 2 * x + 1 > 0 then -1 * d1 + 2 * x + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 6.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 4 MotzkinApplications: 12 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 5.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...