./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/bhmr2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/bhmr2007.i -s /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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 32bit --witnessprinter.graph.data.programhash ad9e151ff8328164b10bed0ca90425954d296eb8 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:01:42,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:42,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:43,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:43,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:43,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:43,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:43,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:43,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:43,042 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:43,043 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:43,046 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:43,047 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:43,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:43,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:43,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:43,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:43,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:43,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:43,069 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:43,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:43,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:43,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:43,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:43,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:43,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:43,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:43,097 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:43,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:43,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:43,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:43,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:43,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:43,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:43,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:43,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:43,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:43,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:43,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:43,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:43,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:43,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:01:43,159 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:43,159 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:43,161 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:43,162 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:43,162 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:43,162 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:01:43,162 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:01:43,163 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:01:43,163 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:01:43,163 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:01:43,164 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:01:43,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:43,165 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:43,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:01:43,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:43,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:43,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:43,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:01:43,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:01:43,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:01:43,167 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:43,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:43,167 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:01:43,167 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:43,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:01:43,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:43,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:43,168 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:01:43,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:43,170 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:43,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:43,171 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:01:43,172 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:01:43,172 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-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad9e151ff8328164b10bed0ca90425954d296eb8 [2020-11-28 03:01:43,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:43,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:43,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:43,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:43,603 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:43,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/../../sv-benchmarks/c/loop-lit/bhmr2007.i [2020-11-28 03:01:43,692 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/data/d2db11b71/5e489fcb1b9b4de7b6b32b17dfdbb182/FLAGec3c812b9 [2020-11-28 03:01:44,308 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:44,309 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/sv-benchmarks/c/loop-lit/bhmr2007.i [2020-11-28 03:01:44,321 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/data/d2db11b71/5e489fcb1b9b4de7b6b32b17dfdbb182/FLAGec3c812b9 [2020-11-28 03:01:44,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/bin/uautomizer/data/d2db11b71/5e489fcb1b9b4de7b6b32b17dfdbb182 [2020-11-28 03:01:44,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:44,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:44,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:44,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:44,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:44,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:44,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d596e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44, skipping insertion in model container [2020-11-28 03:01:44,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:44,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:44,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:44,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:44,916 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:44,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:44,949 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:44,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44 WrapperNode [2020-11-28 03:01:44,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:44,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:44,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:44,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:44,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:44,969 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:44,989 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:44,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:44,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:44,991 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:45,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,014 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... [2020-11-28 03:01:45,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:45,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:45,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:45,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:45,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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 [2020-11-28 03:01:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:45,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:45,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:45,406 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:45,407 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:01:45,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:45 BoogieIcfgContainer [2020-11-28 03:01:45,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:45,418 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:01:45,418 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:01:45,429 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:01:45,430 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:01:45,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:01:44" (1/3) ... [2020-11-28 03:01:45,454 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@660ebe26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:01:45, skipping insertion in model container [2020-11-28 03:01:45,455 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:01:45,455 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:44" (2/3) ... [2020-11-28 03:01:45,455 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@660ebe26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:01:45, skipping insertion in model container [2020-11-28 03:01:45,455 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:01:45,456 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:45" (3/3) ... [2020-11-28 03:01:45,457 INFO L373 chiAutomizerObserver]: Analyzing ICFG bhmr2007.i [2020-11-28 03:01:45,536 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:01:45,536 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:01:45,536 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:01:45,536 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:45,537 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:45,537 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:01:45,537 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:45,537 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:01:45,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-28 03:01:45,597 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:01:45,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:45,597 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:45,603 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:01:45,603 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:01:45,603 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:01:45,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-28 03:01:45,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-28 03:01:45,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:01:45,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:01:45,606 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:01:45,606 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-28 03:01:45,611 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 11#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_~i~0, main_~n~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~n~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0;main_~a~0 := 0;main_~b~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 5#L27true assume !!(main_~n~0 >= 0 && main_~n~0 <= 1000000); 3#L28-2true [2020-11-28 03:01:45,612 INFO L796 eck$LassoCheckResult]: Loop: 3#L28-2true assume !!(main_~i~0 < main_~n~0); 9#L29true assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~a~0 := 1 + main_~a~0;main_~b~0 := 2 + main_~b~0; 6#L29-2true main_~i~0 := 1 + main_~i~0; 3#L28-2true [2020-11-28 03:01:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:45,624 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-11-28 03:01:45,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:45,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552407897] [2020-11-28 03:01:45,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:45,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:45,782 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:45,809 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:45,828 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:45,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:45,830 INFO L82 PathProgramCache]: Analyzing trace with hash 45779, now seen corresponding path program 1 times [2020-11-28 03:01:45,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:45,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998183406] [2020-11-28 03:01:45,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:45,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:45,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:45,846 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:45,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:45,848 INFO L82 PathProgramCache]: Analyzing trace with hash 889575248, now seen corresponding path program 1 times [2020-11-28 03:01:45,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:45,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700130030] [2020-11-28 03:01:45,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:45,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:45,866 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:45,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:45,882 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:45,887 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:46,005 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:01:46,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:01:46,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:01:46,007 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:01:46,007 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:01:46,007 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,007 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:01:46,007 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:01:46,008 INFO L133 ssoRankerPreferences]: Filename of dumped script: bhmr2007.i_Iteration1_Loop [2020-11-28 03:01:46,008 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:01:46,008 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:01:46,029 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,050 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,065 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,159 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:01:46,159 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:01:46,174 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,224 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:01:46,224 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,247 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:01:46,247 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~b~0=0} Honda state: {ULTIMATE.start_main_~b~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~b~0=-5}, {ULTIMATE.start_main_~b~0=2}, {ULTIMATE.start_main_~b~0=5}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,289 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:01:46,289 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,334 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:01:46,334 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,354 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:01:46,355 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0=0} Honda state: {ULTIMATE.start_main_~a~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~a~0=-1}, {ULTIMATE.start_main_~a~0=7}, {ULTIMATE.start_main_~a~0=-5}] Lambdas: [8, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:01:46,398 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:01:46,447 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,658 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:01:46,661 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:01:46,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:01:46,661 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:01:46,661 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:01:46,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:01:46,662 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,662 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:01:46,662 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:01:46,662 INFO L133 ssoRankerPreferences]: Filename of dumped script: bhmr2007.i_Iteration1_Loop [2020-11-28 03:01:46,662 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:01:46,662 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:01:46,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:01:46,835 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:01:46,840 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) [2020-11-28 03:01:46,849 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 [2020-11-28 03:01:46,852 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:46,853 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:46,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:46,854 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:46,854 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:46,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:46,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,904 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 [2020-11-28 03:01:46,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:46,906 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:46,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:46,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:46,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:46,908 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:46,908 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:46,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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 [2020-11-28 03:01:46,941 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 [2020-11-28 03:01:46,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:01:46,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:01:46,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:01:46,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:01:46,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:01:46,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:01:46,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:01:46,958 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:01:46,967 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:01:46,968 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4794593-566a-4937-a45c-40a956ff9699/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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:01:46,977 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:01:46,977 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:01:46,978 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:01:46,978 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-28 03:01:47,017 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:01:47,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:47,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:01:47,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:47,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:01:47,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:47,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:47,195 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:01:47,196 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2020-11-28 03:01:47,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 37 states and 47 transitions. Complement of second has 7 states. [2020-11-28 03:01:47,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:01:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:01:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2020-11-28 03:01:47,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-28 03:01:47,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:01:47,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-28 03:01:47,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:01:47,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 31 transitions. Stem has 3 letters. Loop has 6 letters. [2020-11-28 03:01:47,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:01:47,281 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2020-11-28 03:01:47,284 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:01:47,287 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2020-11-28 03:01:47,288 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:01:47,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:01:47,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:01:47,289 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:01:47,289 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:47,289 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:47,289 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:47,289 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:01:47,289 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:01:47,289 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:01:47,290 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:01:47,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:01:47 BoogieIcfgContainer [2020-11-28 03:01:47,294 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:01:47,295 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:47,295 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:47,295 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:47,296 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:45" (3/4) ... [2020-11-28 03:01:47,299 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:01:47,299 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:47,301 INFO L168 Benchmark]: Toolchain (without parser) took 2628.32 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 41.8 MB in the beginning and 40.5 MB in the end (delta: 1.2 MB). Peak memory consumption was 22.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:47,302 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 77.6 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:47,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.38 ms. Allocated memory is still 77.6 MB. Free memory was 41.6 MB in the beginning and 55.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:47,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.83 ms. Allocated memory is still 77.6 MB. Free memory was 55.4 MB in the beginning and 54.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:47,304 INFO L168 Benchmark]: Boogie Preprocessor took 26.77 ms. Allocated memory is still 77.6 MB. Free memory was 54.0 MB in the beginning and 53.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:47,304 INFO L168 Benchmark]: RCFGBuilder took 398.62 ms. Allocated memory is still 77.6 MB. Free memory was 53.0 MB in the beginning and 41.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:47,305 INFO L168 Benchmark]: BuchiAutomizer took 1876.72 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 41.6 MB in the beginning and 40.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:47,306 INFO L168 Benchmark]: Witness Printer took 4.05 ms. Allocated memory is still 98.6 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:47,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 77.6 MB. Free memory was 58.0 MB in the beginning and 58.0 MB in the end (delta: 39.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.38 ms. Allocated memory is still 77.6 MB. Free memory was 41.6 MB in the beginning and 55.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.83 ms. Allocated memory is still 77.6 MB. Free memory was 55.4 MB in the beginning and 54.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.77 ms. Allocated memory is still 77.6 MB. Free memory was 54.0 MB in the beginning and 53.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 398.62 ms. Allocated memory is still 77.6 MB. Free memory was 53.0 MB in the beginning and 41.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1876.72 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 41.6 MB in the beginning and 40.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.05 ms. Allocated memory is still 98.6 MB. Free memory is still 40.5 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 n + -1 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. 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: 14 SDtfs, 15 SDslu, 14 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf100 lsp41 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...