./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.c --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_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 3dc5764de0a899142e3c264091a9582d1804fe6f ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:13:39,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:13:39,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:13:39,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:13:39,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:13:39,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:13:39,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:13:39,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:13:39,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:13:39,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:13:39,892 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:13:39,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:13:39,894 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:13:39,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:13:39,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:13:39,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:13:39,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:13:39,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:13:39,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:13:39,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:13:39,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:13:39,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:13:39,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:13:39,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:13:39,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:13:39,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:13:39,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:13:39,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:13:39,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:13:39,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:13:39,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:13:39,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:13:39,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:13:39,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:13:39,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:13:39,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:13:39,939 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:13:39,940 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:13:39,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:13:39,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:13:39,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:13:39,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-28 03:13:39,992 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:13:39,999 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:13:40,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:13:40,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:13:40,002 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:13:40,002 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:13:40,002 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:13:40,002 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:13:40,003 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:13:40,004 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:13:40,005 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:13:40,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:13:40,005 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:13:40,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:13:40,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:13:40,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:13:40,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:13:40,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:13:40,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:13:40,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:13:40,007 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:13:40,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:13:40,007 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:13:40,008 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:13:40,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:13:40,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:13:40,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:13:40,009 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:13:40,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:13:40,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:13:40,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:13:40,012 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:13:40,014 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:13:40,014 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_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3dc5764de0a899142e3c264091a9582d1804fe6f [2020-11-28 03:13:40,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:13:40,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:13:40,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:13:40,339 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:13:40,340 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:13:40,341 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/../../sv-benchmarks/c/loops/terminator_02-1.c [2020-11-28 03:13:40,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/data/0bedcd197/9945259e66da451892d6ea41e2b4fee8/FLAG37bf7287b [2020-11-28 03:13:40,916 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:13:40,917 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/sv-benchmarks/c/loops/terminator_02-1.c [2020-11-28 03:13:40,925 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/data/0bedcd197/9945259e66da451892d6ea41e2b4fee8/FLAG37bf7287b [2020-11-28 03:13:41,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/data/0bedcd197/9945259e66da451892d6ea41e2b4fee8 [2020-11-28 03:13:41,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:13:41,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:13:41,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:41,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:13:41,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:13:41,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4af709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41, skipping insertion in model container [2020-11-28 03:13:41,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:13:41,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:13:41,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:41,499 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:13:41,516 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:13:41,537 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:13:41,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41 WrapperNode [2020-11-28 03:13:41,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:13:41,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:41,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:13:41,544 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:13:41,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:13:41,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:13:41,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:13:41,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:13:41,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... [2020-11-28 03:13:41,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:13:41,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:13:41,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:13:41,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:13:41,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 03:13:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:13:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:13:41,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:13:41,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:13:41,959 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:13:41,959 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 03:13:41,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:41 BoogieIcfgContainer [2020-11-28 03:13:41,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:13:41,962 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:13:41,962 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:13:41,965 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:13:41,966 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:13:41,966 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:13:41" (1/3) ... [2020-11-28 03:13:41,980 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5afe9e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:13:41, skipping insertion in model container [2020-11-28 03:13:41,980 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:13:41,980 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:13:41" (2/3) ... [2020-11-28 03:13:41,981 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5afe9e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:13:41, skipping insertion in model container [2020-11-28 03:13:41,981 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:13:41,981 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:41" (3/3) ... [2020-11-28 03:13:41,983 INFO L373 chiAutomizerObserver]: Analyzing ICFG terminator_02-1.c [2020-11-28 03:13:42,027 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:13:42,028 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:13:42,028 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:13:42,028 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:13:42,028 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:13:42,028 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:13:42,029 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:13:42,029 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:13:42,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-28 03:13:42,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:13:42,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:13:42,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:13:42,068 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:13:42,068 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:13:42,068 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:13:42,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-11-28 03:13:42,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:13:42,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:13:42,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:13:42,070 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:13:42,071 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:13:42,078 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 3#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 4#L23-2true [2020-11-28 03:13:42,078 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 7#L23true assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 4#L23-2true [2020-11-28 03:13:42,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:42,084 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-28 03:13:42,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:42,094 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69884388] [2020-11-28 03:13:42,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:42,195 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:42,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:42,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:42,247 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:42,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:42,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2020-11-28 03:13:42,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:42,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213401139] [2020-11-28 03:13:42,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:42,272 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:42,282 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:42,290 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:42,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:42,295 INFO L82 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2020-11-28 03:13:42,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:42,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462500248] [2020-11-28 03:13:42,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:42,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:42,330 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:42,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:42,372 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:42,480 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:42,481 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:42,481 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:42,482 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:42,482 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:13:42,482 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:42,482 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:42,482 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:42,483 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2020-11-28 03:13:42,483 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:42,483 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:42,521 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 03:13:42,530 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 03:13:42,535 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 03:13:42,562 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 03:13:42,581 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 03:13:42,751 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:42,752 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 03:13:42,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:42,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:13:42,778 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:42,778 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post12=0} Honda state: {ULTIMATE.start_main_#t~post12=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 03:13:42,819 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:42,820 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:42,827 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:42,827 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post13=0} Honda state: {ULTIMATE.start_main_#t~post13=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 03:13:42,871 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:42,872 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 [2020-11-28 03:13:42,906 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:13:42,907 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:13:42,927 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:42,927 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [13, 1, 2] Nus: [0, 1] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 [2020-11-28 03:13:42,977 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:42,977 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:13:42,988 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:42,988 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Honda state: {ULTIMATE.start_main_#t~nondet10=0, ULTIMATE.start_main_~tmp~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/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 03:13:43,026 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:43,027 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:43,071 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:13:43,071 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,100 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:13:43,101 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:43,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:43,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:43,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:43,102 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:13:43,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:43,102 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:43,102 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration1_Loop [2020-11-28 03:13:43,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:43,103 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:43,105 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 03:13:43,132 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 03:13:43,136 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 03:13:43,155 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 03:13:43,164 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 03:13:43,317 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:43,321 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:43,334 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 03:13:43,337 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:43,337 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:43,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:43,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:43,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:43,341 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:43,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,344 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:43,396 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 03:13:43,398 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:43,398 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:43,398 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:43,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:43,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:43,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:43,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,402 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,448 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 03:13:43,450 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:43,450 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:43,450 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:43,450 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:43,450 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:43,451 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:43,451 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:43,453 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,477 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 03:13:43,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:43,478 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:43,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:43,478 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:43,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:43,480 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:43,481 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:43,486 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:13:43,536 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2020-11-28 03:13:43,536 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:43,567 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:13:43,567 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:13:43,567 INFO L510 LassoAnalysis]: Proved termination. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,568 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2020-11-28 03:13:43,592 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:13:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:43,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:13:43,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:43,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:43,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:13:43,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:43,703 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 03:13:43,720 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:13:43,721 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-11-28 03:13:43,779 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 45 states and 55 transitions. Complement of second has 7 states. [2020-11-28 03:13:43,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:13:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:13:43,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2020-11-28 03:13:43,783 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-28 03:13:43,784 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:43,784 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:13:43,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:43,785 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:13:43,785 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:43,786 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2020-11-28 03:13:43,790 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:13:43,793 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 9 states and 12 transitions. [2020-11-28 03:13:43,794 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-28 03:13:43,794 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:13:43,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2020-11-28 03:13:43,794 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:13:43,795 INFO L691 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2020-11-28 03:13:43,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2020-11-28 03:13:43,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2020-11-28 03:13:43,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:13:43,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-11-28 03:13:43,818 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:13:43,818 INFO L594 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:13:43,818 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:13:43,819 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2020-11-28 03:13:43,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:13:43,819 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:13:43,819 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:13:43,820 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:13:43,820 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:13:43,820 INFO L794 eck$LassoCheckResult]: Stem: 102#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 96#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 97#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 99#L23 [2020-11-28 03:13:43,820 INFO L796 eck$LassoCheckResult]: Loop: 99#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 98#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 99#L23 [2020-11-28 03:13:43,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:43,821 INFO L82 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2020-11-28 03:13:43,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:43,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859685817] [2020-11-28 03:13:43,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:43,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:43,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:43,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:43,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:43,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2020-11-28 03:13:43,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:43,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975813579] [2020-11-28 03:13:43,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:43,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:43,856 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:43,860 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:43,862 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:43,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:43,863 INFO L82 PathProgramCache]: Analyzing trace with hash 28699749, now seen corresponding path program 1 times [2020-11-28 03:13:43,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:43,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155672415] [2020-11-28 03:13:43,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:43,876 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:43,889 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:43,893 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:43,933 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:43,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:43,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:43,933 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:43,933 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:13:43,933 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:43,933 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:43,933 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:43,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2020-11-28 03:13:43,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:43,934 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:43,935 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 03:13:43,945 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 03:13:43,962 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 03:13:43,968 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 03:13:44,138 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:44,139 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:44,147 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:44,148 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:44,196 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:13:44,197 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:45,430 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:13:45,431 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:45,432 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:45,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:45,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:45,432 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:13:45,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:45,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:45,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:45,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration2_Loop [2020-11-28 03:13:45,432 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:45,432 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:45,433 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 03:13:45,466 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 03:13:45,474 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 03:13:45,477 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 03:13:45,616 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:45,616 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:45,623 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 03:13:45,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:45,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:45,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:45,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:45,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:45,628 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:45,628 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:45,631 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:13:45,633 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:13:45,633 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:45,639 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:13:45,639 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:13:45,639 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:13:45,639 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] [2020-11-28 03:13:45,673 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:13:45,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:45,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:45,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:13:45,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:45,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:13:45,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:45,768 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 03:13:45,768 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:13:45,768 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:13:45,797 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2020-11-28 03:13:45,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:13:45,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:13:45,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-11-28 03:13:45,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-28 03:13:45,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:45,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-28 03:13:45,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:45,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-28 03:13:45,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:45,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2020-11-28 03:13:45,803 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:13:45,803 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 10 states and 13 transitions. [2020-11-28 03:13:45,803 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-28 03:13:45,803 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-28 03:13:45,803 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-11-28 03:13:45,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:13:45,804 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 03:13:45,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-11-28 03:13:45,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 8. [2020-11-28 03:13:45,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:13:45,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2020-11-28 03:13:45,805 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-11-28 03:13:45,805 INFO L594 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2020-11-28 03:13:45,805 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:13:45,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2020-11-28 03:13:45,806 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:13:45,806 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:13:45,806 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:13:45,807 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2020-11-28 03:13:45,807 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:13:45,807 INFO L794 eck$LassoCheckResult]: Stem: 159#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(18);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 155#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~post11, main_#t~post12, main_#t~post13, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~z~0 := main_#t~nondet9;havoc main_#t~nondet9; 156#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 157#L23 assume !(0 != main_~tmp~0 % 256);main_#t~post12 := main_~x~0;main_~x~0 := main_#t~post12 - 1;havoc main_#t~post12;main_#t~post13 := main_~z~0;main_~z~0 := main_#t~post13 - 1;havoc main_#t~post13; 162#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 160#L23 [2020-11-28 03:13:45,807 INFO L796 eck$LassoCheckResult]: Loop: 160#L23 assume 0 != main_~tmp~0 % 256;main_#t~post11 := main_~x~0;main_~x~0 := 1 + main_#t~post11;havoc main_#t~post11; 161#L23-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet10;havoc main_#t~nondet10; 160#L23 [2020-11-28 03:13:45,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:45,808 INFO L82 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2020-11-28 03:13:45,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:45,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39408639] [2020-11-28 03:13:45,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:45,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:45,834 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:45,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:45,852 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:45,856 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:45,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:45,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2020-11-28 03:13:45,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:45,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198373252] [2020-11-28 03:13:45,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:45,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:45,877 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:45,880 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:45,882 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:45,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:45,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 1 times [2020-11-28 03:13:45,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:13:45,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780949117] [2020-11-28 03:13:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:13:45,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:45,897 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:13:45,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:13:45,915 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:13:45,955 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:45,956 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:45,956 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:45,956 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:45,956 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:13:45,956 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:45,956 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:45,957 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:45,957 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2020-11-28 03:13:45,957 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:45,957 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:45,958 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 03:13:45,962 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 03:13:45,966 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 03:13:45,974 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 03:13:46,093 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:46,093 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:46,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:46,115 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:46,119 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:46,119 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post11=0} Honda state: {ULTIMATE.start_main_#t~post11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:46,161 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:46,161 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:46,165 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:46,166 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:46,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:46,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:13:46,213 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:13:46,213 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=191, ULTIMATE.start_main_#t~nondet10=191} Honda state: {ULTIMATE.start_main_~tmp~0=191, ULTIMATE.start_main_#t~nondet10=191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:46,264 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:13:46,264 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:46,304 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:13:46,305 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,636 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:13:47,638 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:13:47,638 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:13:47,638 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:13:47,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:13:47,638 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:13:47,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:13:47,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:13:47,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: terminator_02-1.c_Iteration3_Loop [2020-11-28 03:13:47,639 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:13:47,639 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:13:47,640 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 03:13:47,645 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 03:13:47,651 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 03:13:47,689 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 03:13:47,826 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:13:47,826 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,834 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 03:13:47,835 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:47,836 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:47,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:47,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:47,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:47,837 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:47,837 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:47,838 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,864 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 03:13:47,866 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:47,866 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:47,867 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:47,867 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:47,867 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:47,867 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:47,868 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:47,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,897 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 03:13:47,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:47,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:47,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:47,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:47,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:47,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:47,902 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:47,911 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,938 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 03:13:47,939 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:13:47,939 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:13:47,939 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:13:47,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:13:47,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:13:47,941 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:13:47,941 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:13:47,952 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:13:47,956 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:13:47,956 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8db9e32d-2188-4d40-9e1d-c7f06ee76209/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:13:47,960 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:13:47,960 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:13:47,960 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:13:47,961 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:13:47,999 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:13:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:48,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:13:48,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:48,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:13:48,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:48,071 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 03:13:48,072 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:13:48,072 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-28 03:13:48,131 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2020-11-28 03:13:48,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:13:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:13:48,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-11-28 03:13:48,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-28 03:13:48,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:48,135 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:13:48,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:48,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:13:48,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:48,200 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:13:48,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:48,220 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 03:13:48,221 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:13:48,222 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-28 03:13:48,245 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 5 states. [2020-11-28 03:13:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:13:48,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:13:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-11-28 03:13:48,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-28 03:13:48,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:48,246 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:13:48,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:13:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:48,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:13:48,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:13:48,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:13:48,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:13:48,326 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 03:13:48,327 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:13:48,327 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-11-28 03:13:48,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 14 transitions. Complement of second has 4 states. [2020-11-28 03:13:48,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:13:48,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:13:48,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-11-28 03:13:48,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-28 03:13:48,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:48,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-28 03:13:48,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:48,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-28 03:13:48,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:13:48,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2020-11-28 03:13:48,359 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:13:48,359 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2020-11-28 03:13:48,359 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:13:48,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:13:48,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:13:48,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:13:48,360 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:48,360 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:48,360 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:13:48,360 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:13:48,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:13:48,360 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:13:48,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:13:48,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:13:48 BoogieIcfgContainer [2020-11-28 03:13:48,365 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:13:48,366 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:13:48,366 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:13:48,366 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:13:48,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:13:41" (3/4) ... [2020-11-28 03:13:48,369 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:13:48,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:13:48,371 INFO L168 Benchmark]: Toolchain (without parser) took 7093.64 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.2 MB in the beginning and 56.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:48,372 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 67.1 MB. Free memory is still 29.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:48,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.97 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 63.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:48,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.41 ms. Allocated memory is still 86.0 MB. Free memory was 63.7 MB in the beginning and 62.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:48,374 INFO L168 Benchmark]: Boogie Preprocessor took 17.72 ms. Allocated memory is still 86.0 MB. Free memory was 62.5 MB in the beginning and 61.6 MB in the end (delta: 891.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:48,375 INFO L168 Benchmark]: RCFGBuilder took 362.92 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 50.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:48,376 INFO L168 Benchmark]: BuchiAutomizer took 6403.72 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 57.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:13:48,376 INFO L168 Benchmark]: Witness Printer took 3.28 ms. Allocated memory is still 104.9 MB. Free memory is still 56.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:13:48,379 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 67.1 MB. Free memory is still 29.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.97 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 63.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.41 ms. Allocated memory is still 86.0 MB. Free memory was 63.7 MB in the beginning and 62.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.72 ms. Allocated memory is still 86.0 MB. Free memory was 62.5 MB in the beginning and 61.6 MB in the end (delta: 891.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 362.92 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 50.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 6403.72 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.2 MB in the beginning and 57.5 MB in the end (delta: -7.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.28 ms. Allocated memory is still 104.9 MB. Free memory is still 56.6 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 3 terminating modules (0 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function z and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 197 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 197 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 5.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 27 SDslu, 19 SDs, 0 SdLazy, 35 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp46 ukn100 mio100 lsp100 div447 bol100 ite100 ukn100 eq150 hnf47 smp83 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.9s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...