./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/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 ad7102f2457c0f5542a3d448f84e7fa5158fff18 ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:58:03,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:58:03,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:58:03,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:58:03,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:58:03,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:58:03,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:58:03,965 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:58:03,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:58:03,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:58:03,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:58:03,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:58:03,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:58:03,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:58:03,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:58:03,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:58:03,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:58:03,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:58:04,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:58:04,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:58:04,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:58:04,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:58:04,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:58:04,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:58:04,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:58:04,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:58:04,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:58:04,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:58:04,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:58:04,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:58:04,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:58:04,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:58:04,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:58:04,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:58:04,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:58:04,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:58:04,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:58:04,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:58:04,045 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:58:04,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:58:04,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:58:04,052 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-12-01 15:58:04,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:58:04,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:58:04,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:58:04,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:58:04,099 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:58:04,099 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-12-01 15:58:04,100 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-12-01 15:58:04,100 INFO L138 SettingsManager]: * Use old map elimination=false [2020-12-01 15:58:04,100 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-12-01 15:58:04,100 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-12-01 15:58:04,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-12-01 15:58:04,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:58:04,102 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:58:04,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 15:58:04,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:58:04,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:58:04,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:58:04,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-12-01 15:58:04,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-12-01 15:58:04,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-12-01 15:58:04,104 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:58:04,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:58:04,105 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-12-01 15:58:04,105 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:58:04,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-12-01 15:58:04,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:58:04,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:58:04,106 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-12-01 15:58:04,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:58:04,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:58:04,108 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:58:04,109 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-12-01 15:58:04,110 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-12-01 15:58:04,111 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_b8828be1-26c4-4531-8a3b-df488d8bf94e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad7102f2457c0f5542a3d448f84e7fa5158fff18 [2020-12-01 15:58:04,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:58:04,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:58:04,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:58:04,461 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:58:04,465 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:58:04,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/../../sv-benchmarks/c/loop-lit/gsv2008.i [2020-12-01 15:58:04,563 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/data/28efd8f29/3841bd550353433f95fbf4d01f705d1f/FLAGd0ce5fe8c [2020-12-01 15:58:05,134 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:58:05,135 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/sv-benchmarks/c/loop-lit/gsv2008.i [2020-12-01 15:58:05,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/data/28efd8f29/3841bd550353433f95fbf4d01f705d1f/FLAGd0ce5fe8c [2020-12-01 15:58:05,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/data/28efd8f29/3841bd550353433f95fbf4d01f705d1f [2020-12-01 15:58:05,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:58:05,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:58:05,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:58:05,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:58:05,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:58:05,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@160dbee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05, skipping insertion in model container [2020-12-01 15:58:05,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:58:05,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:58:05,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:58:05,753 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:58:05,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:58:05,786 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:58:05,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05 WrapperNode [2020-12-01 15:58:05,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:58:05,788 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:58:05,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:58:05,789 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:58:05,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:58:05,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:58:05,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:58:05,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:58:05,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,850 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... [2020-12-01 15:58:05,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:58:05,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:58:05,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:58:05,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:58:05,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/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 [2020-12-01 15:58:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:58:05,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:58:05,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:58:05,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:58:06,176 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:58:06,176 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:58:06,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:06 BoogieIcfgContainer [2020-12-01 15:58:06,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:58:06,180 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-12-01 15:58:06,180 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-12-01 15:58:06,184 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-12-01 15:58:06,185 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:58:06,185 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 03:58:05" (1/3) ... [2020-12-01 15:58:06,187 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e2f74d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:58:06, skipping insertion in model container [2020-12-01 15:58:06,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:58:06,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:58:05" (2/3) ... [2020-12-01 15:58:06,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e2f74d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 03:58:06, skipping insertion in model container [2020-12-01 15:58:06,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-12-01 15:58:06,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:06" (3/3) ... [2020-12-01 15:58:06,190 INFO L389 chiAutomizerObserver]: Analyzing ICFG gsv2008.i [2020-12-01 15:58:06,241 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-12-01 15:58:06,242 INFO L360 BuchiCegarLoop]: Hoare is false [2020-12-01 15:58:06,242 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-12-01 15:58:06,242 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:58:06,242 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:58:06,242 INFO L364 BuchiCegarLoop]: Difference is false [2020-12-01 15:58:06,242 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:58:06,243 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-12-01 15:58:06,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-12-01 15:58:06,273 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 15:58:06,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:58:06,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:58:06,280 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 15:58:06,280 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-12-01 15:58:06,280 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-12-01 15:58:06,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2020-12-01 15:58:06,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-12-01 15:58:06,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-12-01 15:58:06,283 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-12-01 15:58:06,283 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-12-01 15:58:06,283 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-12-01 15:58:06,291 INFO L794 eck$LassoCheckResult]: Stem: 11#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); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~post4, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := -50;main_~y~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L28true assume !!(-1000 < main_~y~0 && main_~y~0 < 1000000); 5#L29-2true [2020-12-01 15:58:06,291 INFO L796 eck$LassoCheckResult]: Loop: 5#L29-2true assume !!(main_~x~0 < 0);main_~x~0 := main_~x~0 + main_~y~0;main_#t~post4 := main_~y~0;main_~y~0 := 1 + main_#t~post4;havoc main_#t~post4; 5#L29-2true [2020-12-01 15:58:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:06,298 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-12-01 15:58:06,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:06,307 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132334396] [2020-12-01 15:58:06,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:06,406 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:06,423 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:06,443 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:06,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:06,445 INFO L82 PathProgramCache]: Analyzing trace with hash 47, now seen corresponding path program 1 times [2020-12-01 15:58:06,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:06,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406752340] [2020-12-01 15:58:06,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:06,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:06,453 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:06,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:06,461 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:06,463 INFO L82 PathProgramCache]: Analyzing trace with hash 925676, now seen corresponding path program 1 times [2020-12-01 15:58:06,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:58:06,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328800431] [2020-12-01 15:58:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:58:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:06,519 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:58:06,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:58:06,583 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:58:06,665 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:58:06,665 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:58:06,666 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:58:06,666 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:58:06,666 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-12-01 15:58:06,666 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:06,667 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:58:06,667 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:58:06,667 INFO L133 ssoRankerPreferences]: Filename of dumped script: gsv2008.i_Iteration1_Loop [2020-12-01 15:58:06,667 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:58:06,667 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:58:06,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:06,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:06,762 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:58:06,763 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/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 [2020-12-01 15:58:06,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-12-01 15:58:06,782 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:06,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-12-01 15:58:06,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-12-01 15:58:07,099 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-12-01 15:58:07,101 INFO L210 LassoAnalysis]: Preferences: [2020-12-01 15:58:07,101 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-12-01 15:58:07,101 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-12-01 15:58:07,101 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-12-01 15:58:07,101 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-12-01 15:58:07,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:07,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-12-01 15:58:07,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-12-01 15:58:07,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: gsv2008.i_Iteration1_Loop [2020-12-01 15:58:07,102 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-12-01 15:58:07,102 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-12-01 15:58:07,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:07,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-12-01 15:58:07,188 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-12-01 15:58:07,195 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/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) [2020-12-01 15:58:07,210 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:07,213 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:07,213 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:07,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:07,214 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:07,214 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:07,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:07,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:07,242 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:07,288 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 [2020-12-01 15:58:07,291 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:07,291 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:07,291 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:07,291 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:07,291 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-12-01 15:58:07,293 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-12-01 15:58:07,293 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:07,317 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-12-01 15:58:07,352 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-12-01 15:58:07,360 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 [2020-12-01 15:58:07,363 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-12-01 15:58:07,363 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-12-01 15:58:07,363 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-12-01 15:58:07,363 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-12-01 15:58:07,364 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-12-01 15:58:07,367 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-12-01 15:58:07,368 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-12-01 15:58:07,375 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-12-01 15:58:07,389 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-12-01 15:58:07,390 INFO L444 ModelExtractionUtils]: 3 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8828be1-26c4-4531-8a3b-df488d8bf94e/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 [2020-12-01 15:58:07,397 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-12-01 15:58:07,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-12-01 15:58:07,398 INFO L510 LassoAnalysis]: Proved termination. [2020-12-01 15:58:07,398 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = -2*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-12-01 15:58:07,422 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-12-01 15:58:07,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:58:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:07,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-01 15:58:07,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:58:07,536 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-01 15:58:07,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:58:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:58:07,564 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-12-01 15:58:07,565 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 2 states. [2020-12-01 15:58:07,653 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 2 states. Result 33 states and 40 transitions. Complement of second has 5 states. [2020-12-01 15:58:07,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-12-01 15:58:07,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-12-01 15:58:07,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-12-01 15:58:07,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 3 letters. Loop has 1 letters. [2020-12-01 15:58:07,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:07,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 4 letters. Loop has 1 letters. [2020-12-01 15:58:07,664 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:07,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 28 transitions. Stem has 3 letters. Loop has 2 letters. [2020-12-01 15:58:07,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-12-01 15:58:07,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2020-12-01 15:58:07,670 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:58:07,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2020-12-01 15:58:07,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-12-01 15:58:07,674 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-12-01 15:58:07,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-12-01 15:58:07,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-12-01 15:58:07,676 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:58:07,676 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:58:07,676 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:58:07,676 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-12-01 15:58:07,676 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:58:07,677 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-12-01 15:58:07,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-12-01 15:58:07,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 03:58:07 BoogieIcfgContainer [2020-12-01 15:58:07,684 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-12-01 15:58:07,685 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:58:07,685 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:58:07,689 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:58:07,691 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:58:06" (3/4) ... [2020-12-01 15:58:07,695 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:58:07,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:58:07,698 INFO L168 Benchmark]: Toolchain (without parser) took 2196.92 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.0 MB in the beginning and 83.1 MB in the end (delta: -22.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:07,700 INFO L168 Benchmark]: CDTParser took 1.09 ms. Allocated memory is still 90.2 MB. Free memory is still 46.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:07,703 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.79 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 68.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:07,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.92 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 66.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:07,707 INFO L168 Benchmark]: Boogie Preprocessor took 29.79 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 65.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:07,708 INFO L168 Benchmark]: RCFGBuilder took 325.31 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 55.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:58:07,710 INFO L168 Benchmark]: BuchiAutomizer took 1504.57 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 83.1 MB in the end (delta: -28.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:07,711 INFO L168 Benchmark]: Witness Printer took 10.56 ms. Allocated memory is still 109.1 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:58:07,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.09 ms. Allocated memory is still 90.2 MB. Free memory is still 46.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.79 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 68.0 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.92 ms. Allocated memory is still 90.2 MB. Free memory was 68.0 MB in the beginning and 66.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.79 ms. Allocated memory is still 90.2 MB. Free memory was 66.6 MB in the beginning and 65.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 325.31 ms. Allocated memory is still 90.2 MB. Free memory was 65.6 MB in the beginning and 55.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1504.57 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 54.8 MB in the beginning and 83.1 MB in the end (delta: -28.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 10.56 ms. Allocated memory is still 109.1 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else -2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. 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: 12 SDtfs, 13 SDslu, 6 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 44ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 3 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...