./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.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_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:13:04,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:13:04,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:13:04,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:13:04,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:13:04,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:13:04,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:13:04,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:13:04,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:13:04,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:13:04,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:13:04,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:13:04,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:13:04,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:13:04,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:13:04,586 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:13:04,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:13:04,589 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:13:04,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:13:04,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:13:04,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:13:04,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:13:04,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:13:04,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:13:04,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:13:04,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:13:04,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:13:04,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:13:04,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:13:04,622 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:13:04,622 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:13:04,624 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:13:04,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:13:04,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:13:04,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:13:04,630 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:13:04,631 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:13:04,631 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:13:04,631 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:13:04,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:13:04,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:13:04,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 23:13:04,685 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:13:04,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:13:04,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:13:04,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:13:04,688 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:13:04,688 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:13:04,689 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:13:04,689 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:13:04,689 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:13:04,689 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:13:04,691 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:13:04,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:13:04,691 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:13:04,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:13:04,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:13:04,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:13:04,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:13:04,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:13:04,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:13:04,693 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:13:04,693 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:13:04,693 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:13:04,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:13:04,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:13:04,694 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:13:04,694 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:13:04,695 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:13:04,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:13:04,695 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:13:04,700 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:13:04,700 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_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 775ea6e0a1296fd7b29dfc5da5a4c77d3361f4a8 [2020-11-29 23:13:05,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:13:05,085 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:13:05,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:13:05,097 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:13:05,097 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:13:05,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2020-11-29 23:13:05,194 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/data/a50a9aa19/84f20097972e4a5ba9eb7176fb3c0223/FLAG900ba73bb [2020-11-29 23:13:05,675 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:13:05,678 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-while2.c [2020-11-29 23:13:05,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/data/a50a9aa19/84f20097972e4a5ba9eb7176fb3c0223/FLAG900ba73bb [2020-11-29 23:13:06,090 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/data/a50a9aa19/84f20097972e4a5ba9eb7176fb3c0223 [2020-11-29 23:13:06,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:13:06,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:13:06,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:13:06,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:13:06,108 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:13:06,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9614f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06, skipping insertion in model container [2020-11-29 23:13:06,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:13:06,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:13:06,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:13:06,308 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:13:06,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:13:06,341 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:13:06,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06 WrapperNode [2020-11-29 23:13:06,342 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:13:06,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:13:06,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:13:06,343 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:13:06,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:13:06,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:13:06,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:13:06,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:13:06,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,386 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... [2020-11-29 23:13:06,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:13:06,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:13:06,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:13:06,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:13:06,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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 [2020-11-29 23:13:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:13:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:13:06,659 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:13:06,660 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 23:13:06,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:13:06 BoogieIcfgContainer [2020-11-29 23:13:06,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:13:06,664 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:13:06,664 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:13:06,668 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:13:06,669 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:13:06,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:13:06" (1/3) ... [2020-11-29 23:13:06,670 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d873f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:13:06, skipping insertion in model container [2020-11-29 23:13:06,671 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:13:06,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:13:06" (2/3) ... [2020-11-29 23:13:06,672 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d873f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:13:06, skipping insertion in model container [2020-11-29 23:13:06,672 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:13:06,672 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:13:06" (3/3) ... [2020-11-29 23:13:06,674 INFO L373 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-while2.c [2020-11-29 23:13:06,747 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:13:06,747 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:13:06,748 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:13:06,748 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:13:06,748 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:13:06,748 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:13:06,748 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:13:06,748 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:13:06,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-29 23:13:06,777 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:13:06,777 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:13:06,777 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:13:06,783 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 23:13:06,783 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:13:06,783 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:13:06,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-11-29 23:13:06,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:13:06,785 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:13:06,785 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:13:06,785 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-11-29 23:13:06,785 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:13:06,792 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 3#L17-2true [2020-11-29 23:13:06,793 INFO L796 eck$LassoCheckResult]: Loop: 3#L17-2true assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 6#L19-2true assume !(main_~j~0 > 0); 5#L19-3true main_~i~0 := main_~i~0 - 1; 3#L17-2true [2020-11-29 23:13:06,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:06,801 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-11-29 23:13:06,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:06,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931287664] [2020-11-29 23:13:06,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:06,903 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:06,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:06,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:06,933 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:13:06,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:06,941 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-11-29 23:13:06,942 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:06,943 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66816720] [2020-11-29 23:13:06,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:06,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:06,963 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:06,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:06,975 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:06,979 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:13:06,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:06,993 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-11-29 23:13:06,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:06,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593757480] [2020-11-29 23:13:06,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:07,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593757480] [2020-11-29 23:13:07,119 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:13:07,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 23:13:07,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917862896] [2020-11-29 23:13:07,262 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 23:13:07,321 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:13:07,323 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:13:07,323 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:13:07,323 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:13:07,324 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:13:07,324 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:07,324 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:13:07,324 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:13:07,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2020-11-29 23:13:07,325 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:13:07,325 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:13:07,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,583 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:13:07,585 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:07,596 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:07,597 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 [2020-11-29 23:13:07,610 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:13:07,610 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_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:13:07,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:07,657 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:07,664 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:13:07,664 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_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:13:07,714 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:07,714 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:07,723 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:13:07,723 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=-5, ULTIMATE.start_main_~N~0=-5} Honda state: {ULTIMATE.start_main_~j~0=-5, ULTIMATE.start_main_~N~0=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:13:07,774 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:07,774 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:07,830 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:13:07,831 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:07,883 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:13:07,887 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:13:07,887 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:13:07,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:13:07,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:13:07,889 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:13:07,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:07,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:13:07,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:13:07,890 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration1_Loop [2020-11-29 23:13:07,890 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:13:07,890 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:13:07,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:07,933 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:08,065 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:13:08,071 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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 [2020-11-29 23:13:08,100 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 [2020-11-29 23:13:08,104 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:08,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:08,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:08,105 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:08,115 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:13:08,116 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:13:08,132 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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 [2020-11-29 23:13:08,170 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 [2020-11-29 23:13:08,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:08,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:13:08,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:08,172 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:08,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:08,180 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:13:08,181 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 23:13:08,184 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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 [2020-11-29 23:13:08,212 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 [2020-11-29 23:13:08,215 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:08,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:08,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:08,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:08,221 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:13:08,222 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:13:08,231 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:08,285 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 [2020-11-29 23:13:08,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:08,288 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:13:08,288 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:08,288 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:08,288 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:08,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:13:08,290 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:08,294 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:13:08,300 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:13:08,300 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:08,310 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:13:08,310 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:13:08,310 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:13:08,311 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:08,356 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:13:08,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:08,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:13:08,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:08,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:08,424 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:13:08,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:08,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:08,451 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 [2020-11-29 23:13:08,452 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-11-29 23:13:08,522 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-11-29 23:13:08,523 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 [2020-11-29 23:13:08,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 23:13:08,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-11-29 23:13:08,527 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-11-29 23:13:08,536 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:08,536 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-11-29 23:13:08,537 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:08,539 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-11-29 23:13:08,540 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:08,541 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2020-11-29 23:13:08,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 23:13:08,555 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-11-29 23:13:08,556 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-11-29 23:13:08,557 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-11-29 23:13:08,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-11-29 23:13:08,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:13:08,560 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 23:13:08,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-11-29 23:13:08,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-11-29 23:13:08,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 23:13:08,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-11-29 23:13:08,612 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-11-29 23:13:08,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:08,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 23:13:08,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 23:13:08,625 INFO L87 Difference]: Start difference. First operand 6 states and 9 transitions. Second operand 4 states. [2020-11-29 23:13:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:08,737 INFO L93 Difference]: Finished difference Result 11 states and 15 transitions. [2020-11-29 23:13:08,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 23:13:08,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2020-11-29 23:13:08,740 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-29 23:13:08,740 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 15 transitions. [2020-11-29 23:13:08,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-11-29 23:13:08,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-11-29 23:13:08,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2020-11-29 23:13:08,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:13:08,742 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-11-29 23:13:08,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2020-11-29 23:13:08,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 7. [2020-11-29 23:13:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 23:13:08,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-11-29 23:13:08,744 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 23:13:08,744 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-11-29 23:13:08,744 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:13:08,744 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2020-11-29 23:13:08,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 23:13:08,745 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:13:08,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:13:08,746 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 23:13:08,746 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 23:13:08,746 INFO L794 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 91#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 93#L19-2 [2020-11-29 23:13:08,746 INFO L796 eck$LassoCheckResult]: Loop: 93#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 93#L19-2 [2020-11-29 23:13:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:08,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-11-29 23:13:08,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:08,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658240642] [2020-11-29 23:13:08,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:08,758 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:08,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:08,769 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:13:08,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:08,770 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-11-29 23:13:08,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:08,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048323258] [2020-11-29 23:13:08,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:08,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:08,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:08,792 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:08,793 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:13:08,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:08,794 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-11-29 23:13:08,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:08,795 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169762907] [2020-11-29 23:13:08,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:08,810 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:08,815 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:08,819 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:13:08,835 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:13:08,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:13:08,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:13:08,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:13:08,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:13:08,836 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:08,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:13:08,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:13:08,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2020-11-29 23:13:08,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:13:08,836 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:13:08,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:08,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:08,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:08,926 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:13:08,926 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:08,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:08,985 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 [2020-11-29 23:13:08,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:13:08,990 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_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,042 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:09,042 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:13:09,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:13:09,119 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:13:09,121 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:13:09,121 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:13:09,121 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:13:09,121 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:13:09,121 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:13:09,121 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,121 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:13:09,122 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:13:09,122 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration2_Loop [2020-11-29 23:13:09,122 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:13:09,122 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:13:09,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,158 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,252 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:13:09,252 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,255 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 [2020-11-29 23:13:09,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:09,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:09,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:09,258 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:09,261 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:13:09,262 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:13:09,281 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:09,333 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 [2020-11-29 23:13:09,335 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:09,335 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:13:09,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:09,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:09,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:09,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:13:09,337 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 [2020-11-29 23:13:09,341 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:13:09,346 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:13:09,346 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:09,355 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:13:09,355 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:13:09,355 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:13:09,355 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,389 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:13:09,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:09,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:09,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:13:09,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:09,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:09,436 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:13:09,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:09,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:09,438 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 23:13:09,438 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-11-29 23:13:09,458 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 14 states and 19 transitions. Complement of second has 5 states. [2020-11-29 23:13:09,460 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 [2020-11-29 23:13:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 23:13:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-11-29 23:13:09,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 1 letters. [2020-11-29 23:13:09,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:09,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2020-11-29 23:13:09,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:09,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2020-11-29 23:13:09,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:09,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2020-11-29 23:13:09,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 23:13:09,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 14 transitions. [2020-11-29 23:13:09,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-11-29 23:13:09,464 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-11-29 23:13:09,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2020-11-29 23:13:09,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 23:13:09,465 INFO L691 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2020-11-29 23:13:09,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2020-11-29 23:13:09,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2020-11-29 23:13:09,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-29 23:13:09,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-11-29 23:13:09,467 INFO L714 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-11-29 23:13:09,467 INFO L594 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-11-29 23:13:09,467 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 23:13:09,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-11-29 23:13:09,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 23:13:09,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:13:09,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:13:09,472 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2020-11-29 23:13:09,472 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 23:13:09,472 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~N~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_~N~0; 141#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 142#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 145#L19-2 assume !(main_~j~0 > 0); 146#L19-3 main_~i~0 := main_~i~0 - 1; 143#L17-2 assume !!(main_~i~0 > 0);main_~j~0 := main_~N~0; 144#L19-2 [2020-11-29 23:13:09,472 INFO L796 eck$LassoCheckResult]: Loop: 144#L19-2 assume !!(main_~j~0 > 0);main_~j~0 := main_~j~0 - 1; 144#L19-2 [2020-11-29 23:13:09,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:09,473 INFO L82 PathProgramCache]: Analyzing trace with hash 925951131, now seen corresponding path program 1 times [2020-11-29 23:13:09,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:09,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079580275] [2020-11-29 23:13:09,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:09,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:09,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079580275] [2020-11-29 23:13:09,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076358098] [2020-11-29 23:13:09,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 23:13:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:09,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:13:09,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:09,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 23:13:09,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-29 23:13:09,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257370778] [2020-11-29 23:13:09,722 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 23:13:09,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:09,723 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-11-29 23:13:09,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:13:09,723 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123047004] [2020-11-29 23:13:09,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:13:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:09,728 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:13:09,730 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:13:09,731 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:13:09,751 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:13:09,751 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:13:09,751 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:13:09,751 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:13:09,751 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:13:09,751 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,751 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:13:09,752 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:13:09,752 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2020-11-29 23:13:09,752 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:13:09,752 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:13:09,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,760 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,829 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:13:09,829 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,836 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:09,836 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:13:09,841 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:13:09,841 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,872 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:13:09,873 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:13:09,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:13:09,934 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,982 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 23:13:09,985 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:13:09,985 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:13:09,985 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:13:09,985 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:13:09,986 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:13:09,986 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:09,986 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:13:09,986 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:13:09,986 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-while2.c_Iteration3_Loop [2020-11-29 23:13:09,986 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:13:09,986 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:13:09,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:09,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:10,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:13:10,075 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:13:10,076 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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 [2020-11-29 23:13:10,081 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 [2020-11-29 23:13:10,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:10,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:10,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:10,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:10,093 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:13:10,093 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:13:10,099 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:10,140 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 [2020-11-29 23:13:10,142 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:13:10,142 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:13:10,142 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:13:10,142 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:13:10,142 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:13:10,143 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:13:10,144 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:10,152 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:13:10,185 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 23:13:10,186 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6afcd7b2-b373-48c6-a3a9-1fd540ccff6c/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) [2020-11-29 23:13:10,189 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 23:13:10,189 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 23:13:10,189 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:13:10,190 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:13:10,225 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 23:13:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:10,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:10,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:13:10,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:10,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:10,265 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:13:10,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:10,267 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 23:13:10,267 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-11-29 23:13:10,286 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2020-11-29 23:13:10,287 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 [2020-11-29 23:13:10,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 23:13:10,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-11-29 23:13:10,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-11-29 23:13:10,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:10,288 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:13:10,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:10,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:13:10,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:10,318 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:13:10,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:10,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:10,319 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2020-11-29 23:13:10,319 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-11-29 23:13:10,329 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 12 states and 16 transitions. Complement of second has 5 states. [2020-11-29 23:13:10,330 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 [2020-11-29 23:13:10,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 23:13:10,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2020-11-29 23:13:10,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 1 letters. [2020-11-29 23:13:10,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:10,331 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 23:13:10,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:13:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:10,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 23:13:10,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:13:10,367 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 23:13:10,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:13:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:13:10,368 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 1 loop predicates [2020-11-29 23:13:10,368 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 2 states. [2020-11-29 23:13:10,388 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 10 states and 12 transitions. Complement of second has 4 states. [2020-11-29 23:13:10,389 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 [2020-11-29 23:13:10,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 23:13:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2020-11-29 23:13:10,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 1 letters. [2020-11-29 23:13:10,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:10,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2020-11-29 23:13:10,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:10,391 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-29 23:13:10,391 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:13:10,391 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2020-11-29 23:13:10,392 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:13:10,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-11-29 23:13:10,393 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:13:10,393 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:13:10,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:13:10,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:13:10,393 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:13:10,393 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:13:10,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:13:10,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:13:10,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:13:10,395 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2020-11-29 23:13:10,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:13:10,395 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 23:13:10,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:13:10,395 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 23:13:10,395 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:13:10,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:13:10,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:13:10,396 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:13:10,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:13:10,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:13:10,396 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:13:10,396 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:13:10,397 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:13:10,397 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 23:13:10,397 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:13:10,397 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:13:10,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:13:10,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:13:10 BoogieIcfgContainer [2020-11-29 23:13:10,408 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:13:10,411 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:13:10,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:13:10,412 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:13:10,412 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:13:06" (3/4) ... [2020-11-29 23:13:10,416 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:13:10,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:13:10,423 INFO L168 Benchmark]: Toolchain (without parser) took 4318.77 ms. Allocated memory is still 115.3 MB. Free memory was 85.8 MB in the beginning and 40.5 MB in the end (delta: 45.4 MB). Peak memory consumption was 46.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:10,424 INFO L168 Benchmark]: CDTParser took 1.26 ms. Allocated memory is still 77.6 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:13:10,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.25 ms. Allocated memory is still 115.3 MB. Free memory was 85.4 MB in the beginning and 95.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:10,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.31 ms. Allocated memory is still 115.3 MB. Free memory was 95.1 MB in the beginning and 93.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:13:10,426 INFO L168 Benchmark]: Boogie Preprocessor took 18.73 ms. Allocated memory is still 115.3 MB. Free memory was 93.9 MB in the beginning and 93.0 MB in the end (delta: 972.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:13:10,427 INFO L168 Benchmark]: RCFGBuilder took 269.61 ms. Allocated memory is still 115.3 MB. Free memory was 93.0 MB in the beginning and 84.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:10,431 INFO L168 Benchmark]: BuchiAutomizer took 3744.71 ms. Allocated memory is still 115.3 MB. Free memory was 84.7 MB in the beginning and 40.5 MB in the end (delta: 44.2 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:13:10,431 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 115.3 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:13:10,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.26 ms. Allocated memory is still 77.6 MB. Free memory was 39.9 MB in the beginning and 39.8 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 238.25 ms. Allocated memory is still 115.3 MB. Free memory was 85.4 MB in the beginning and 95.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.31 ms. Allocated memory is still 115.3 MB. Free memory was 95.1 MB in the beginning and 93.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.73 ms. Allocated memory is still 115.3 MB. Free memory was 93.9 MB in the beginning and 93.0 MB in the end (delta: 972.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 269.61 ms. Allocated memory is still 115.3 MB. Free memory was 93.0 MB in the beginning and 84.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3744.71 ms. Allocated memory is still 115.3 MB. Free memory was 84.7 MB in the beginning and 40.5 MB in the end (delta: 44.2 MB). Peak memory consumption was 47.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.55 ms. Allocated memory is still 115.3 MB. Free memory is still 40.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function j and consists of 3 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 2.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 27 SDtfs, 25 SDslu, 13 SDs, 0 SdLazy, 34 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax203 hnf98 lsp42 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 59ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...