./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.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_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i -s /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 2a51e7d7d3160b4418bb04f01bccc7314d2964c0 ............................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:19:17,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:19:17,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:19:17,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:19:17,734 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:19:17,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:19:17,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:19:17,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:19:17,742 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:19:17,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:19:17,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:19:17,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:19:17,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:19:17,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:19:17,775 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:19:17,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:19:17,777 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:19:17,784 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:19:17,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:19:17,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:19:17,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:19:17,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:19:17,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:19:17,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:19:17,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:19:17,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:19:17,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:19:17,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:19:17,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:19:17,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:19:17,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:19:17,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:19:17,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:19:17,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:19:17,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:19:17,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:19:17,825 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:19:17,825 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:19:17,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:19:17,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:19:17,827 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:19:17,829 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:19:17,877 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:19:17,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:19:17,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:19:17,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:19:17,880 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:19:17,880 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:19:17,880 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:19:17,881 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:19:17,881 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:19:17,881 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:19:17,882 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:19:17,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:19:17,883 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:19:17,883 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:19:17,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:19:17,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:19:17,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:19:17,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:19:17,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:19:17,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:19:17,884 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:19:17,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:19:17,885 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:19:17,885 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:19:17,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:19:17,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:19:17,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:19:17,886 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:19:17,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:19:17,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:19:17,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:19:17,888 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:19:17,889 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:19:17,890 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_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a51e7d7d3160b4418bb04f01bccc7314d2964c0 [2020-11-28 03:19:18,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:19:18,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:19:18,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:19:18,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:19:18,218 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:19:18,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2020-11-28 03:19:18,306 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/data/f99871c13/e0097b9b487f450f9bc1e6516e75c4d2/FLAG27ff5e752 [2020-11-28 03:19:18,914 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:19:18,914 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2020-11-28 03:19:18,926 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/data/f99871c13/e0097b9b487f450f9bc1e6516e75c4d2/FLAG27ff5e752 [2020-11-28 03:19:19,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/bin/uautomizer/data/f99871c13/e0097b9b487f450f9bc1e6516e75c4d2 [2020-11-28 03:19:19,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:19:19,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:19:19,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:19,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:19:19,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:19:19,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e7cfe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19, skipping insertion in model container [2020-11-28 03:19:19,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:19:19,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:19:19,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:19,512 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:19:19,530 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:19:19,545 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:19:19,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19 WrapperNode [2020-11-28 03:19:19,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:19:19,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:19,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:19:19,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:19:19,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,568 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:19:19,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:19:19,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:19:19,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:19:19,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... [2020-11-28 03:19:19,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:19:19,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:19:19,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:19:19,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:19:19,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 03:19:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:19:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:19:19,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:19:19,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:19:20,317 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:19:20,317 INFO L298 CfgBuilder]: Removed 37 assume(true) statements. [2020-11-28 03:19:20,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:20 BoogieIcfgContainer [2020-11-28 03:19:20,322 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:19:20,323 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:19:20,323 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:19:20,327 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:19:20,328 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:20,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:19:19" (1/3) ... [2020-11-28 03:19:20,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61df338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:20, skipping insertion in model container [2020-11-28 03:19:20,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:20,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:19:19" (2/3) ... [2020-11-28 03:19:20,331 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61df338a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:19:20, skipping insertion in model container [2020-11-28 03:19:20,331 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:19:20,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:20" (3/3) ... [2020-11-28 03:19:20,334 INFO L373 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle.i [2020-11-28 03:19:20,400 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:19:20,401 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:19:20,401 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:19:20,401 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:19:20,401 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:19:20,401 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:19:20,402 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:19:20,402 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:19:20,422 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states. [2020-11-28 03:19:20,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-11-28 03:19:20,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:20,453 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:20,460 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:19:20,460 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:20,460 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:19:20,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states. [2020-11-28 03:19:20,472 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-11-28 03:19:20,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:19:20,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:19:20,474 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:19:20,474 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:19:20,482 INFO L794 eck$LassoCheckResult]: Stem: 28#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); 10#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~post6, main_#t~post7, main_#t~nondet5, main_#t~post8, main_#t~post9, main_~in~0, main_~inlen~0, main_~bufferlen~0, main_~buf~0, main_~buflim~0;havoc main_~in~0;main_~inlen~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~bufferlen~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~buf~0;havoc main_~buflim~0; 51#L31true assume main_~bufferlen~0 > 1; 43#L31-1true assume main_~inlen~0 > 0; 13#L32true assume main_~bufferlen~0 < main_~inlen~0; 31#L33true main_~buf~0 := 0;main_~in~0 := 0;main_~buflim~0 := main_~bufferlen~0 - 2; 48#L18-11true [2020-11-28 03:19:20,484 INFO L796 eck$LassoCheckResult]: Loop: 48#L18-11true assume !!(0 != main_#t~nondet5);havoc main_#t~nondet5; 49#L39true assume !(main_~buf~0 == main_~buflim~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~buf~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 7#L18true assume !(0 == __VERIFIER_assert_~cond); 5#L18-2true __VERIFIER_assert_#in~cond := (if main_~buf~0 < main_~bufferlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 17#L18-5true main_#t~post6 := main_~buf~0;main_~buf~0 := 1 + main_#t~post6;havoc main_#t~post6; 33#L44true main_#t~post7 := main_~in~0;main_~in~0 := 1 + main_#t~post7;havoc main_#t~post7;__VERIFIER_assert_#in~cond := (if 0 <= main_~in~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 14#L18-6true assume !(0 == __VERIFIER_assert_~cond); 11#L18-8true __VERIFIER_assert_#in~cond := (if main_~in~0 < main_~inlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 50#L18-9true assume !(0 == __VERIFIER_assert_~cond); 48#L18-11true [2020-11-28 03:19:20,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:20,492 INFO L82 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2020-11-28 03:19:20,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:20,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193329995] [2020-11-28 03:19:20,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:20,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:20,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:20,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:20,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:20,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1874427736, now seen corresponding path program 1 times [2020-11-28 03:19:20,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:20,717 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029281274] [2020-11-28 03:19:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:20,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:20,798 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:20,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:20,831 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:20,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:20,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1648844084, now seen corresponding path program 1 times [2020-11-28 03:19:20,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:19:20,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280955944] [2020-11-28 03:19:20,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:19:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:20,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:19:20,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:19:20,885 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:19:21,008 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-11-28 03:19:21,064 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:19:21,065 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:21,071 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:19:21,071 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:21,079 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-11-28 03:19:21,080 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 03:19:21,190 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2020-11-28 03:19:21,203 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:21,204 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:21,204 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:21,204 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:21,204 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:19:21,205 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:21,205 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:21,205 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:21,205 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2020-11-28 03:19:21,205 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:21,206 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:21,230 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 03:19:21,238 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 03:19:21,251 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 03:19:21,256 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 03:19:21,264 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 03:19:21,283 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 03:19:21,446 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:21,446 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 [2020-11-28 03:19:21,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:21,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:19:21,468 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:19:21,468 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 03:19:21,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:19:21,516 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 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 03:19:21,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:19:21,566 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 [2020-11-28 03:19:21,756 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:19:21,759 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:19:21,759 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:19:21,759 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:19:21,759 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:19:21,759 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:19:21,759 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:21,759 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:19:21,759 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:19:21,760 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2020-11-28 03:19:21,760 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:19:21,760 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:19:21,762 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 03:19:21,788 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 03:19:21,805 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 03:19:21,810 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 03:19:21,816 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 03:19:21,820 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 03:19:21,995 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:19:21,999 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 03:19:22,005 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 03:19:22,007 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:22,008 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:22,008 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:22,008 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:22,008 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:22,012 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:22,012 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:22,016 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 03:19:22,053 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 03:19:22,055 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:19:22,055 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:19:22,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:19:22,056 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:19:22,056 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:19:22,058 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:19:22,058 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:19:22,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:19:22,077 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:19:22,078 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a025d1fd-90b8-4b70-8ff9-5b0c98a497b8/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 [2020-11-28 03:19:22,083 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:19:22,083 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:19:22,083 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:19:22,084 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in~0, ULTIMATE.start_main_~inlen~0) = -1*ULTIMATE.start_main_~in~0 + 1*ULTIMATE.start_main_~inlen~0 Supporting invariants [] [2020-11-28 03:19:22,120 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:19:22,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:19:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:22,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:19:22,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:19:22,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:19:22,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:19:22,255 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 03:19:22,270 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:19:22,271 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states. Second operand 5 states. [2020-11-28 03:19:22,444 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states.. Second operand 5 states. Result 136 states and 179 transitions. Complement of second has 9 states. [2020-11-28 03:19:22,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-11-28 03:19:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-28 03:19:22,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2020-11-28 03:19:22,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 134 transitions. Stem has 6 letters. Loop has 10 letters. [2020-11-28 03:19:22,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:22,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 134 transitions. Stem has 16 letters. Loop has 10 letters. [2020-11-28 03:19:22,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:22,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 134 transitions. Stem has 6 letters. Loop has 20 letters. [2020-11-28 03:19:22,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:19:22,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 179 transitions. [2020-11-28 03:19:22,471 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:22,473 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 0 states and 0 transitions. [2020-11-28 03:19:22,474 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:19:22,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:19:22,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:19:22,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:19:22,475 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:22,475 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:22,476 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:19:22,476 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:19:22,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:19:22,476 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:19:22,476 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:19:22,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:19:22 BoogieIcfgContainer [2020-11-28 03:19:22,485 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:19:22,486 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:19:22,486 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:19:22,486 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:19:22,487 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:19:20" (3/4) ... [2020-11-28 03:19:22,490 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:19:22,491 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:19:22,494 INFO L168 Benchmark]: Toolchain (without parser) took 3233.80 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 76.9 MB in the beginning and 90.6 MB in the end (delta: -13.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,495 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 67.1 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:22,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.20 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 86.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.41 ms. Allocated memory is still 109.1 MB. Free memory was 86.2 MB in the beginning and 84.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,504 INFO L168 Benchmark]: Boogie Preprocessor took 31.81 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:22,505 INFO L168 Benchmark]: RCFGBuilder took 686.00 ms. Allocated memory is still 109.1 MB. Free memory was 83.2 MB in the beginning and 65.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,506 INFO L168 Benchmark]: BuchiAutomizer took 2162.38 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 65.8 MB in the beginning and 90.8 MB in the end (delta: -24.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:19:22,512 INFO L168 Benchmark]: Witness Printer took 4.76 ms. Allocated memory is still 140.5 MB. Free memory was 90.8 MB in the beginning and 90.6 MB in the end (delta: 206.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:19:22,517 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 67.1 MB. Free memory was 29.1 MB in the beginning and 29.0 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 290.20 ms. Allocated memory is still 109.1 MB. Free memory was 76.6 MB in the beginning and 86.2 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.41 ms. Allocated memory is still 109.1 MB. Free memory was 86.2 MB in the beginning and 84.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.81 ms. Allocated memory is still 109.1 MB. Free memory was 84.7 MB in the beginning and 83.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 686.00 ms. Allocated memory is still 109.1 MB. Free memory was 83.2 MB in the beginning and 65.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2162.38 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 65.8 MB in the beginning and 90.8 MB in the end (delta: -24.9 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.76 ms. Allocated memory is still 140.5 MB. Free memory was 90.8 MB in the beginning and 90.6 MB in the end (delta: 206.5 kB). 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 -1 * in + inlen and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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: 48 SDtfs, 54 SDslu, 83 SDs, 0 SdLazy, 28 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp100 dnf169 smp100 tf104 neg95 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...