./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f560e32afd5a40adf4a98abbf810cb377947c4f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:09:53,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:53,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:53,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:53,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:53,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:53,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:53,216 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:53,219 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:53,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:53,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:53,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:53,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:53,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:53,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:53,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:53,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:53,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:53,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:53,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:53,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:53,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:53,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:53,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:53,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:53,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:53,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:53,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:53,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:53,279 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:53,280 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:53,281 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:53,284 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:53,285 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:53,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:53,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:53,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:53,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:53,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:53,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:53,292 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:53,295 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:09:53,343 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:53,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:53,346 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:53,347 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:53,347 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:53,348 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:09:53,348 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:09:53,348 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:09:53,349 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:09:53,349 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:09:53,350 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:09:53,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:53,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:09:53,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:53,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:53,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:09:53,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:09:53,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:09:53,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:53,353 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:09:53,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:53,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:09:53,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:53,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:53,355 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:09:53,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:53,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:09:53,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:53,356 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:09:53,359 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:09:53,359 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_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2020-11-28 03:09:53,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:53,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:53,712 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:53,714 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:53,715 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:53,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2020-11-28 03:09:53,794 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/data/bcab240e8/ea4635b76d1b4185ad18dca7c6164ace/FLAG6a0288927 [2020-11-28 03:09:54,295 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:54,295 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2020-11-28 03:09:54,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/data/bcab240e8/ea4635b76d1b4185ad18dca7c6164ace/FLAG6a0288927 [2020-11-28 03:09:54,686 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/data/bcab240e8/ea4635b76d1b4185ad18dca7c6164ace [2020-11-28 03:09:54,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:54,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:54,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:54,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:54,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:54,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21be5157 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54, skipping insertion in model container [2020-11-28 03:09:54,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:54,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:54,850 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:54,854 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:54,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:54,902 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:54,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54 WrapperNode [2020-11-28 03:09:54,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:54,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:54,905 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:54,906 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:54,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,932 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:54,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:54,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:54,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:54,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,966 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... [2020-11-28 03:09:54,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:54,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:54,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:54,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:54,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:55,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:55,276 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:55,277 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:09:55,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:55 BoogieIcfgContainer [2020-11-28 03:09:55,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:55,281 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:09:55,281 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:09:55,286 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:09:55,287 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:09:55,287 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:09:54" (1/3) ... [2020-11-28 03:09:55,288 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fa232d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:09:55, skipping insertion in model container [2020-11-28 03:09:55,289 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:09:55,289 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:54" (2/3) ... [2020-11-28 03:09:55,290 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fa232d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:09:55, skipping insertion in model container [2020-11-28 03:09:55,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:09:55,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:55" (3/3) ... [2020-11-28 03:09:55,293 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c [2020-11-28 03:09:55,372 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:09:55,373 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:09:55,373 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:09:55,373 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:55,374 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:55,374 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:09:55,374 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:55,374 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:09:55,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:09:55,418 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:55,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:55,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:55,426 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:09:55,426 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:55,426 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:09:55,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-28 03:09:55,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:55,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:55,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:55,430 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-28 03:09:55,430 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:55,439 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 8#L20-2true [2020-11-28 03:09:55,440 INFO L796 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~i~0 > 0); 10#L20true assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 8#L20-2true [2020-11-28 03:09:55,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:55,448 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-11-28 03:09:55,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:55,463 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669092769] [2020-11-28 03:09:55,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:55,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:55,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:55,589 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:55,612 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:55,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:55,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2020-11-28 03:09:55,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:55,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064347115] [2020-11-28 03:09:55,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:55,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:55,638 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:55,648 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:55,650 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:55,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:55,663 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2020-11-28 03:09:55,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:55,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343798201] [2020-11-28 03:09:55,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:55,785 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 03:09:55,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343798201] [2020-11-28 03:09:55,788 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:55,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:09:55,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690499835] [2020-11-28 03:09:55,855 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:55,855 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:55,856 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:55,856 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:55,856 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:09:55,856 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:55,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:55,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:55,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2020-11-28 03:09:55,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:55,857 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:55,880 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 03:09:55,898 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 03:09:55,904 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 03:09:56,104 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:56,105 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:56,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:56,114 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,124 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:09:56,125 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,149 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:56,149 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:09:56,153 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:09:56,153 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,176 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:56,177 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:56,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:09:56,211 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:09:56,245 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:09:56,246 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:56,247 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:56,247 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:56,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:56,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:56,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:56,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:56,248 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration1_Loop [2020-11-28 03:09:56,248 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:56,248 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:56,250 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 03:09:56,260 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 03:09:56,265 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 03:09:56,380 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:56,385 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:56,400 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 03:09:56,405 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:56,406 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:56,406 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:56,406 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:56,417 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:56,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,428 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:56,455 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 03:09:56,457 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:56,457 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:56,457 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:56,458 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:56,462 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:56,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:09:56,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,498 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 03:09:56,499 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:56,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:56,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:56,500 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:56,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:56,503 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:56,503 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:56,508 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:56,519 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:09:56,519 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,526 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:09:56,526 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:09:56,526 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:56,527 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-28 03:09:56,566 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:09:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:56,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:56,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:56,627 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:56,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:56,650 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 03:09:56,663 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 03:09:56,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-28 03:09:56,732 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 8 states. [2020-11-28 03:09:56,733 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 03:09:56,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:09:56,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2020-11-28 03:09:56,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-28 03:09:56,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:56,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:09:56,738 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:56,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-28 03:09:56,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:56,741 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2020-11-28 03:09:56,749 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:56,754 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2020-11-28 03:09:56,756 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-28 03:09:56,756 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:09:56,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2020-11-28 03:09:56,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:56,757 INFO L691 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:09:56,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2020-11-28 03:09:56,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-11-28 03:09:56,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-11-28 03:09:56,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2020-11-28 03:09:56,788 INFO L714 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2020-11-28 03:09:56,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:56,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:56,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:56,794 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 3 states. [2020-11-28 03:09:56,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:56,821 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2020-11-28 03:09:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:56,823 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2020-11-28 03:09:56,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:56,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2020-11-28 03:09:56,824 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:09:56,824 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-28 03:09:56,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2020-11-28 03:09:56,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:09:56,825 INFO L691 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-28 03:09:56,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2020-11-28 03:09:56,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-28 03:09:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-28 03:09:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2020-11-28 03:09:56,826 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-28 03:09:56,826 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2020-11-28 03:09:56,826 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:09:56,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2020-11-28 03:09:56,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:56,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:56,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:56,828 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:09:56,828 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:56,828 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 93#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 94#L20-2 assume !!(main_~i~0 > 0); 97#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 95#L20-2 [2020-11-28 03:09:56,828 INFO L796 eck$LassoCheckResult]: Loop: 95#L20-2 assume !!(main_~i~0 > 0); 96#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 95#L20-2 [2020-11-28 03:09:56,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:56,829 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2020-11-28 03:09:56,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:56,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341181532] [2020-11-28 03:09:56,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:56,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:56,851 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:56,856 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:56,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:56,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2020-11-28 03:09:56,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:56,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342544869] [2020-11-28 03:09:56,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:56,863 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:56,868 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:56,869 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:56,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:56,870 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2020-11-28 03:09:56,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:56,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37328500] [2020-11-28 03:09:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:56,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:56,885 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:56,920 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:56,958 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:56,958 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:56,958 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:56,958 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:56,958 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:09:56,958 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:56,959 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:56,959 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:56,959 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2020-11-28 03:09:56,959 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:56,959 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:56,961 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 03:09:56,974 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 03:09:56,979 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 03:09:57,078 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:57,078 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:57,083 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:57,083 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,089 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:09:57,089 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) [2020-11-28 03:09:57,139 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:57,139 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:09:57,144 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) [2020-11-28 03:09:57,186 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:57,186 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:57,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:09:57,241 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,289 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:09:57,291 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:57,291 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:57,291 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:57,291 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:57,291 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:57,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:57,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:57,292 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration2_Loop [2020-11-28 03:09:57,292 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:57,292 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:57,294 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 03:09:57,299 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 03:09:57,304 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 03:09:57,375 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:57,376 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:57,380 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 03:09:57,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:57,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:57,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:57,382 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:57,391 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:57,391 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,397 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:57,444 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 03:09:57,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:57,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:57,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:57,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:57,452 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:57,452 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,466 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) [2020-11-28 03:09:57,513 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 03:09:57,515 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:57,515 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:57,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:57,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:57,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:57,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:57,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,520 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:57,524 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:09:57,524 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:57,529 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:09:57,530 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:09:57,530 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:57,530 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-28 03:09:57,552 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:09:57,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:57,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:57,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:57,597 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:57,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:57,624 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 03:09:57,625 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 03:09:57,626 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-11-28 03:09:57,647 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2020-11-28 03:09:57,649 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 03:09:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:09:57,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-28 03:09:57,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:09:57,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:57,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:09:57,650 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:57,650 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2020-11-28 03:09:57,651 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:57,651 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2020-11-28 03:09:57,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:57,652 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2020-11-28 03:09:57,652 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-11-28 03:09:57,652 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:09:57,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2020-11-28 03:09:57,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:57,653 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 03:09:57,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2020-11-28 03:09:57,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 03:09:57,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:09:57,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2020-11-28 03:09:57,654 INFO L714 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 03:09:57,655 INFO L594 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2020-11-28 03:09:57,655 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:09:57,655 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-11-28 03:09:57,655 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:09:57,655 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:57,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:57,661 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2020-11-28 03:09:57,662 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:57,662 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 148#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 149#L20-2 assume !!(main_~i~0 > 0); 156#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 155#L20-2 assume !!(main_~i~0 > 0); 154#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 150#L20-2 [2020-11-28 03:09:57,662 INFO L796 eck$LassoCheckResult]: Loop: 150#L20-2 assume !!(main_~i~0 > 0); 151#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 150#L20-2 [2020-11-28 03:09:57,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:57,663 INFO L82 PathProgramCache]: Analyzing trace with hash 920231918, now seen corresponding path program 2 times [2020-11-28 03:09:57,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:57,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254574688] [2020-11-28 03:09:57,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:57,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:57,674 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:57,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:57,705 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:57,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2020-11-28 03:09:57,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:57,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427538483] [2020-11-28 03:09:57,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:57,711 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:57,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:57,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:57,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:57,723 INFO L82 PathProgramCache]: Analyzing trace with hash -420389359, now seen corresponding path program 2 times [2020-11-28 03:09:57,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:57,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402934060] [2020-11-28 03:09:57,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:57,743 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:57,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:57,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:57,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:57,806 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:57,807 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:57,807 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:57,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:57,807 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:09:57,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:57,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:57,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2020-11-28 03:09:57,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:57,808 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:57,809 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 03:09:57,819 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 03:09:57,829 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 03:09:57,890 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:57,890 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:57,898 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:57,898 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:57,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:09:57,961 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 03:09:58,008 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:09:58,011 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:58,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:58,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:58,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:58,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:58,012 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:58,012 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:58,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:58,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration3_Loop [2020-11-28 03:09:58,012 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:58,013 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:58,014 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 03:09:58,027 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 03:09:58,031 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 03:09:58,088 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:58,088 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) [2020-11-28 03:09:58,102 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 03:09:58,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:58,104 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:58,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:58,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:58,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:58,106 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:58,106 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:58,111 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:58,115 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-28 03:09:58,115 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:58,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:09:58,121 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-28 03:09:58,121 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:58,121 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-28 03:09:58,159 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-28 03:09:58,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,197 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:58,211 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 03:09:58,211 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 03:09:58,211 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:09:58,225 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2020-11-28 03:09:58,226 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 03:09:58,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:09:58,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-28 03:09:58,226 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:09:58,227 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:58,227 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:09:58,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:58,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,256 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:58,277 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 03:09:58,277 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 03:09:58,278 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:09:58,295 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2020-11-28 03:09:58,295 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 03:09:58,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:09:58,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2020-11-28 03:09:58,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:09:58,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:58,296 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-28 03:09:58,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:58,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:58,329 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:09:58,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:58,340 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 03:09:58,341 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 03:09:58,341 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-11-28 03:09:58,363 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 4 states. [2020-11-28 03:09:58,364 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 03:09:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:09:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-11-28 03:09:58,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:09:58,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:58,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2020-11-28 03:09:58,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:58,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 03:09:58,366 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:58,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2020-11-28 03:09:58,367 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:09:58,367 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2020-11-28 03:09:58,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-28 03:09:58,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-28 03:09:58,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-11-28 03:09:58,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-28 03:09:58,368 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-11-28 03:09:58,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-11-28 03:09:58,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2020-11-28 03:09:58,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-28 03:09:58,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-11-28 03:09:58,370 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-11-28 03:09:58,370 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-11-28 03:09:58,370 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-28 03:09:58,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-11-28 03:09:58,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-28 03:09:58,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:09:58,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:09:58,371 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-28 03:09:58,371 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:09:58,371 INFO L794 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 300#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 301#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2020-11-28 03:09:58,371 INFO L796 eck$LassoCheckResult]: Loop: 302#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 305#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2020-11-28 03:09:58,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,372 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2020-11-28 03:09:58,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:58,372 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619110749] [2020-11-28 03:09:58,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:58,378 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:58,381 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:58,382 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:58,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,383 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2020-11-28 03:09:58,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:58,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452107599] [2020-11-28 03:09:58,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:58,387 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:58,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:58,389 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:58,390 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:58,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:58,391 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 3 times [2020-11-28 03:09:58,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:58,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465545405] [2020-11-28 03:09:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:58,407 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:58,425 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:58,427 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:58,561 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:58,561 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:58,561 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:58,561 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:58,562 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-28 03:09:58,562 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:58,562 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:58,562 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:58,562 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2020-11-28 03:09:58,562 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:58,562 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:58,564 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 03:09:58,568 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 03:09:58,582 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 03:09:58,585 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 03:09:58,591 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 03:09:58,596 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 03:09:58,693 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:58,693 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:58,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:58,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:09:58,700 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-28 03:09:58,700 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:58,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-28 03:09:58,743 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:58,805 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-28 03:09:58,805 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-28 03:09:59,075 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-28 03:09:59,077 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:09:59,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:09:59,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:09:59,078 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:09:59,078 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:09:59,078 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:59,078 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:09:59,078 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:09:59,078 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4.c_Iteration4_Lasso [2020-11-28 03:09:59,078 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:09:59,078 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:09:59,080 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 03:09:59,083 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 03:09:59,095 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 03:09:59,099 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 03:09:59,102 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 03:09:59,118 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 03:09:59,215 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:09:59,215 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:59,223 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 03:09:59,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:59,224 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:59,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:59,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:59,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:59,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:59,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:59,226 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:59,249 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 03:09:59,250 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:59,250 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:59,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:59,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:59,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:59,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:59,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:59,252 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/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 03:09:59,275 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:59,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:59,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:09:59,277 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:59,277 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:59,277 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:59,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:09:59,277 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:09:59,279 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:59,324 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 03:09:59,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:59,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:59,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:59,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:59,329 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:59,329 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:59,333 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:59,373 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 03:09:59,375 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:09:59,375 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:09:59,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:09:59,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:09:59,381 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:09:59,381 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:59,389 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:09:59,404 INFO L443 ModelExtractionUtils]: Simplification made 7 calls to the SMT solver. [2020-11-28 03:09:59,404 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 5 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ce23cc7c-b874-491e-bd33-fed83d55cb7f/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:09:59,407 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:09:59,412 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-28 03:09:59,412 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:09:59,413 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~m~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~m~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2020-11-28 03:09:59,457 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2020-11-28 03:09:59,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:59,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:59,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-28 03:09:59,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:59,528 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-28 03:09:59,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:09:59,578 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 03:09:59,579 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 03:09:59,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-11-28 03:09:59,681 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 5 states. [2020-11-28 03:09:59,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:09:59,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:09:59,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-11-28 03:09:59,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-11-28 03:09:59,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:59,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-28 03:09:59,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:59,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2020-11-28 03:09:59,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:09:59,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2020-11-28 03:09:59,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:09:59,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-11-28 03:09:59,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:09:59,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:09:59,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:09:59,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:09:59,686 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:59,686 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:59,686 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:09:59,686 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-28 03:09:59,686 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:09:59,686 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:09:59,686 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:09:59,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:09:59 BoogieIcfgContainer [2020-11-28 03:09:59,695 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:09:59,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:59,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:59,696 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:59,696 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:55" (3/4) ... [2020-11-28 03:09:59,700 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:09:59,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:59,702 INFO L168 Benchmark]: Toolchain (without parser) took 5009.77 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 63.6 MB in the beginning and 107.9 MB in the end (delta: -44.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:59,703 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 49.1 MB in the beginning and 49.1 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:59,705 INFO L168 Benchmark]: CACSL2BoogieTranslator took 211.45 ms. Allocated memory is still 92.3 MB. Free memory was 63.5 MB in the beginning and 71.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:59,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 92.3 MB. Free memory was 71.1 MB in the beginning and 69.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:59,712 INFO L168 Benchmark]: Boogie Preprocessor took 24.09 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 69.0 MB in the end (delta: 858.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:59,712 INFO L168 Benchmark]: RCFGBuilder took 301.02 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 60.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:59,713 INFO L168 Benchmark]: BuchiAutomizer took 4414.26 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.4 MB in the beginning and 107.9 MB in the end (delta: -47.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:59,713 INFO L168 Benchmark]: Witness Printer took 4.66 ms. Allocated memory is still 134.2 MB. Free memory is still 107.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:59,725 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 92.3 MB. Free memory was 49.1 MB in the beginning and 49.1 MB in the end (delta: 40.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 211.45 ms. Allocated memory is still 92.3 MB. Free memory was 63.5 MB in the beginning and 71.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.38 ms. Allocated memory is still 92.3 MB. Free memory was 71.1 MB in the beginning and 69.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.09 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 69.0 MB in the end (delta: 858.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 301.02 ms. Allocated memory is still 92.3 MB. Free memory was 69.0 MB in the beginning and 60.8 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4414.26 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 60.4 MB in the beginning and 107.9 MB in the end (delta: -47.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.66 ms. Allocated memory is still 134.2 MB. Free memory is still 107.9 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function i + -1 * m and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 29 SDslu, 6 SDs, 0 SdLazy, 47 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf98 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...