./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fef737e6ce8f4d154b70d44967f8d8c87159a2fe ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 22:25:27,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:25:27,248 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:25:27,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:25:27,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:25:27,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:25:27,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:25:27,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:25:27,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:25:27,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:25:27,336 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:25:27,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:25:27,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:25:27,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:25:27,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:25:27,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:25:27,347 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:25:27,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:25:27,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:25:27,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:25:27,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:25:27,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:25:27,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:25:27,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:25:27,378 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:25:27,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:25:27,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:25:27,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:25:27,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:25:27,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:25:27,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:25:27,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:25:27,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:25:27,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:25:27,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:25:27,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:25:27,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:25:27,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:25:27,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:25:27,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:25:27,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:25:27,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 22:25:27,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:25:27,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:25:27,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:25:27,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:25:27,442 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 22:25:27,442 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 22:25:27,442 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 22:25:27,442 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 22:25:27,442 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 22:25:27,443 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 22:25:27,444 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 22:25:27,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:25:27,444 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:25:27,445 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:25:27,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:25:27,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:25:27,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:25:27,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 22:25:27,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 22:25:27,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 22:25:27,446 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:25:27,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 22:25:27,446 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 22:25:27,447 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:25:27,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 22:25:27,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:25:27,447 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 22:25:27,448 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 22:25:27,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:25:27,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 22:25:27,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 22:25:27,450 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 22:25:27,452 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 22:25:27,452 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_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fef737e6ce8f4d154b70d44967f8d8c87159a2fe [2020-11-29 22:25:27,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:25:27,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:25:27,738 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:25:27,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:25:27,740 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:25:27,741 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2020-11-29 22:25:27,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/data/5d1947aba/8930a8b05d44462f871de08d1351d193/FLAG773f0ab12 [2020-11-29 22:25:28,311 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:25:28,311 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/sv-benchmarks/c/loop-lit/cggmp2005b.i [2020-11-29 22:25:28,317 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/data/5d1947aba/8930a8b05d44462f871de08d1351d193/FLAG773f0ab12 [2020-11-29 22:25:28,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/data/5d1947aba/8930a8b05d44462f871de08d1351d193 [2020-11-29 22:25:28,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:25:28,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:25:28,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:25:28,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:25:28,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:25:28,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c76667b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28, skipping insertion in model container [2020-11-29 22:25:28,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:25:28,700 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:25:28,878 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:25:28,889 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:25:28,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:25:28,920 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:25:28,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28 WrapperNode [2020-11-29 22:25:28,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:25:28,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:25:28,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:25:28,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:25:28,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,937 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:25:28,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:25:28,955 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:25:28,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:25:28,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... [2020-11-29 22:25:28,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:25:28,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:25:28,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:25:28,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:25:28,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:25:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:25:29,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:25:29,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:25:29,243 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:25:29,243 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-11-29 22:25:29,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:25:29 BoogieIcfgContainer [2020-11-29 22:25:29,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:25:29,246 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 22:25:29,251 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 22:25:29,254 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 22:25:29,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:25:29,255 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 10:25:28" (1/3) ... [2020-11-29 22:25:29,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e83f683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:25:29, skipping insertion in model container [2020-11-29 22:25:29,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:25:29,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:25:28" (2/3) ... [2020-11-29 22:25:29,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e83f683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 10:25:29, skipping insertion in model container [2020-11-29 22:25:29,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 22:25:29,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:25:29" (3/3) ... [2020-11-29 22:25:29,259 INFO L373 chiAutomizerObserver]: Analyzing ICFG cggmp2005b.i [2020-11-29 22:25:29,365 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 22:25:29,365 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 22:25:29,365 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 22:25:29,366 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 22:25:29,366 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 22:25:29,366 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 22:25:29,366 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 22:25:29,366 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 22:25:29,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 22:25:29,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 22:25:29,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:29,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:29,408 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 22:25:29,408 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 22:25:29,409 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 22:25:29,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 22:25:29,411 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 22:25:29,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:29,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:29,411 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 22:25:29,412 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 22:25:29,419 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 13#L35-3true [2020-11-29 22:25:29,420 INFO L796 eck$LassoCheckResult]: Loop: 13#L35-3true assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 7#L31-2true assume !(main_~j~0 < 20); 5#L31-3true main_~k~0 := 4; 14#L35-2true assume !true; 13#L35-3true [2020-11-29 22:25:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:29,426 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-29 22:25:29,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:29,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323551746] [2020-11-29 22:25:29,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:29,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:29,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:29,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:29,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:29,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1269299, now seen corresponding path program 1 times [2020-11-29 22:25:29,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:29,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847167190] [2020-11-29 22:25:29,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:29,694 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 22:25:29,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847167190] [2020-11-29 22:25:29,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:25:29,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 22:25:29,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691340286] [2020-11-29 22:25:29,703 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-29 22:25:29,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:25:29,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 22:25:29,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 22:25:29,732 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2020-11-29 22:25:29,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:25:29,738 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2020-11-29 22:25:29,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:25:29,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2020-11-29 22:25:29,746 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 22:25:29,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 6 states and 8 transitions. [2020-11-29 22:25:29,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 22:25:29,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-29 22:25:29,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2020-11-29 22:25:29,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:25:29,752 INFO L691 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-11-29 22:25:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2020-11-29 22:25:29,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-29 22:25:29,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-29 22:25:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-11-29 22:25:29,784 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-11-29 22:25:29,784 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-11-29 22:25:29,784 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 22:25:29,784 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-11-29 22:25:29,785 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-29 22:25:29,786 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:29,786 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:29,787 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-29 22:25:29,787 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-29 22:25:29,787 INFO L794 eck$LassoCheckResult]: Stem: 39#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 37#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 38#L35-3 [2020-11-29 22:25:29,788 INFO L796 eck$LassoCheckResult]: Loop: 38#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 40#L31-2 assume !(main_~j~0 < 20); 42#L31-3 main_~k~0 := 4; 41#L35-2 assume !(main_~k~0 <= 3); 38#L35-3 [2020-11-29 22:25:29,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:29,790 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2020-11-29 22:25:29,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:29,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409626012] [2020-11-29 22:25:29,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:29,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:29,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:29,838 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:29,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:29,839 INFO L82 PathProgramCache]: Analyzing trace with hash 1269295, now seen corresponding path program 1 times [2020-11-29 22:25:29,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:29,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366468510] [2020-11-29 22:25:29,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:29,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:29,849 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:29,851 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:29,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:29,852 INFO L82 PathProgramCache]: Analyzing trace with hash 889696497, now seen corresponding path program 1 times [2020-11-29 22:25:29,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:29,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444383850] [2020-11-29 22:25:29,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:29,901 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 22:25:29,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444383850] [2020-11-29 22:25:29,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 22:25:29,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-29 22:25:29,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301886867] [2020-11-29 22:25:29,991 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:29,992 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:29,992 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:29,992 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:29,992 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:25:29,992 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:29,992 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:29,993 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:29,993 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2020-11-29 22:25:29,993 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:29,993 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:30,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:25:30,025 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 22:25:30,037 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 22:25:30,149 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:30,151 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:30,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:25:30,172 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:25:30,184 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 22:25:30,184 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=20} Honda state: {ULTIMATE.start_main_~j~0=20} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:30,211 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:25:30,211 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:30,253 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:25:30,253 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 22:25:30,286 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:25:30,287 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:30,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:30,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:30,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:30,288 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:25:30,288 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:30,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:30,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:30,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration2_Loop [2020-11-29 22:25:30,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:30,289 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:30,290 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 22:25:30,297 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 22:25:30,324 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 22:25:30,380 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:30,385 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:30,393 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 22:25:30,396 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:30,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:25:30,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:30,398 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:30,398 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:30,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:25:30,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:30,405 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:30,451 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 22:25:30,453 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:30,453 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:25:30,454 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:30,454 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:30,454 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:30,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:25:30,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:30,462 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:25:30,467 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:25:30,467 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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) [2020-11-29 22:25:30,492 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:25:30,492 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:25:30,492 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:25:30,493 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 201 Supporting invariants [] Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:30,517 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:25:30,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:30,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:25:30,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:30,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:25:30,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:30,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:25:30,627 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 22:25:30,628 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-11-29 22:25:30,656 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 14 states and 21 transitions. Complement of second has 4 states. [2020-11-29 22:25:30,657 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 22:25:30,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-29 22:25:30,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-29 22:25:30,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-11-29 22:25:30,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:30,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-29 22:25:30,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:30,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 8 letters. [2020-11-29 22:25:30,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:30,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 21 transitions. [2020-11-29 22:25:30,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-29 22:25:30,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 13 states and 20 transitions. [2020-11-29 22:25:30,663 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 22:25:30,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-29 22:25:30,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 20 transitions. [2020-11-29 22:25:30,663 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:25:30,664 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 20 transitions. [2020-11-29 22:25:30,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 20 transitions. [2020-11-29 22:25:30,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2020-11-29 22:25:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-29 22:25:30,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 17 transitions. [2020-11-29 22:25:30,666 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 17 transitions. [2020-11-29 22:25:30,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:25:30,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 22:25:30,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 22:25:30,667 INFO L87 Difference]: Start difference. First operand 11 states and 17 transitions. Second operand 3 states. [2020-11-29 22:25:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:25:30,673 INFO L93 Difference]: Finished difference Result 12 states and 19 transitions. [2020-11-29 22:25:30,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 22:25:30,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 19 transitions. [2020-11-29 22:25:30,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-29 22:25:30,677 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 19 transitions. [2020-11-29 22:25:30,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 22:25:30,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-29 22:25:30,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 19 transitions. [2020-11-29 22:25:30,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:25:30,678 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-11-29 22:25:30,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 19 transitions. [2020-11-29 22:25:30,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-29 22:25:30,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-29 22:25:30,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2020-11-29 22:25:30,680 INFO L714 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-11-29 22:25:30,680 INFO L594 BuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2020-11-29 22:25:30,680 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-29 22:25:30,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2020-11-29 22:25:30,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-11-29 22:25:30,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:30,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:30,681 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-29 22:25:30,681 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:25:30,681 INFO L794 eck$LassoCheckResult]: Stem: 124#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 119#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 120#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 121#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 129#L31-2 [2020-11-29 22:25:30,681 INFO L796 eck$LassoCheckResult]: Loop: 129#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 129#L31-2 [2020-11-29 22:25:30,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:30,682 INFO L82 PathProgramCache]: Analyzing trace with hash 925804, now seen corresponding path program 1 times [2020-11-29 22:25:30,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:30,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849233130] [2020-11-29 22:25:30,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:30,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:30,732 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:30,735 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:30,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:30,736 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2020-11-29 22:25:30,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:30,737 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677014442] [2020-11-29 22:25:30,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:30,740 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:30,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:30,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:30,744 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:30,744 INFO L82 PathProgramCache]: Analyzing trace with hash 28699944, now seen corresponding path program 2 times [2020-11-29 22:25:30,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:30,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340943039] [2020-11-29 22:25:30,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:30,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:30,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:30,768 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:30,982 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-11-29 22:25:31,049 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:31,050 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:31,050 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:31,050 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:31,050 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:25:31,050 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,050 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:31,050 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:31,050 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration3_Lasso [2020-11-29 22:25:31,050 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:31,051 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:31,054 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 22:25:31,134 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 22:25:31,137 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 22:25:31,142 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 22:25:31,146 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 22:25:31,151 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 22:25:31,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 22:25:31,355 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:31,356 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:31,368 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 22:25:31,370 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,371 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,371 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,371 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,378 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,378 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,386 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:31,426 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 22:25:31,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,434 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,435 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,460 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,500 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 22:25:31,502 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,502 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,503 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,503 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,508 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,508 INFO L402 nArgumentSynthesizer]: A total of 2 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 22:25:31,513 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,562 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 22:25:31,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,565 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,565 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,565 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,569 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,569 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,580 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,622 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 22:25:31,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,627 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,627 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:31,678 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 22:25:31,680 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,680 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,680 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,680 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,684 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,684 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,688 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:31,730 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 22:25:31,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,732 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,732 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,732 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,735 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,736 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,740 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,783 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 22:25:31,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,785 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,785 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,785 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:25:31,795 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,836 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 22:25:31,838 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,838 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,838 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,838 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,841 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,841 INFO L402 nArgumentSynthesizer]: A total of 2 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 22:25:31,845 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,891 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 22:25:31,893 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,893 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:25:31,894 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,894 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,894 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:25:31,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:31,943 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 22:25:31,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:31,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:31,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:31,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:31,948 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:31,948 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:31,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/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 22:25:31,999 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 22:25:32,001 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:32,002 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:32,002 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:32,002 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:32,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:32,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:25:32,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:32,059 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 22:25:32,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:32,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:32,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:32,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:32,065 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:32,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,069 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,111 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 22:25:32,113 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:32,113 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:32,113 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:32,113 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:32,118 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 22:25:32,118 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 22:25:32,125 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:25:32,136 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2020-11-29 22:25:32,136 INFO L444 ModelExtractionUtils]: 1 out of 10 variables were initially zero. Simplification set additionally 4 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:32,144 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,150 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2020-11-29 22:25:32,151 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:25:32,151 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 39 Supporting invariants [1*ULTIMATE.start_main_~i~0 - 1 >= 0] [2020-11-29 22:25:32,210 INFO L297 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2020-11-29 22:25:32,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:25:32,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:32,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,307 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:25:32,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:32,307 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 22:25:32,308 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 1 loop predicates [2020-11-29 22:25:32,308 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand 4 states. [2020-11-29 22:25:32,352 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 21 states and 34 transitions. Complement of second has 6 states. [2020-11-29 22:25:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-29 22:25:32,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 22:25:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2020-11-29 22:25:32,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 1 letters. [2020-11-29 22:25:32,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:32,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 5 letters. Loop has 1 letters. [2020-11-29 22:25:32,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:32,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-29 22:25:32,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:32,353 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 34 transitions. [2020-11-29 22:25:32,355 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:25:32,355 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 18 states and 28 transitions. [2020-11-29 22:25:32,355 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 22:25:32,356 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-11-29 22:25:32,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 28 transitions. [2020-11-29 22:25:32,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:25:32,356 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-11-29 22:25:32,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 28 transitions. [2020-11-29 22:25:32,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-11-29 22:25:32,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 22:25:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 27 transitions. [2020-11-29 22:25:32,358 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2020-11-29 22:25:32,358 INFO L594 BuchiCegarLoop]: Abstraction has 17 states and 27 transitions. [2020-11-29 22:25:32,359 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-29 22:25:32,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 27 transitions. [2020-11-29 22:25:32,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:25:32,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:32,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:32,360 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-29 22:25:32,360 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:25:32,360 INFO L794 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 216#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 217#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 218#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 227#L31-2 assume !(main_~j~0 < 20); 224#L31-3 main_~k~0 := 4; 222#L35-2 [2020-11-29 22:25:32,360 INFO L796 eck$LassoCheckResult]: Loop: 222#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 222#L35-2 [2020-11-29 22:25:32,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:32,361 INFO L82 PathProgramCache]: Analyzing trace with hash 889698226, now seen corresponding path program 1 times [2020-11-29 22:25:32,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:32,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481915048] [2020-11-29 22:25:32,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:25:32,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481915048] [2020-11-29 22:25:32,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249436040] [2020-11-29 22:25:32,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:25:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 22:25:32,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:25:32,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:25:32,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-11-29 22:25:32,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381326080] [2020-11-29 22:25:32,522 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:25:32,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:32,522 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 1 times [2020-11-29 22:25:32,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:32,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124078253] [2020-11-29 22:25:32,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:32,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:32,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:32,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:32,533 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:32,549 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:32,549 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:32,549 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:32,549 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:32,549 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:25:32,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:32,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:32,550 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2020-11-29 22:25:32,550 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:32,550 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:32,550 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 22:25:32,586 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:32,586 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,632 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:25:32,632 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,656 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:25:32,656 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:25:32,695 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:25:32,697 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:32,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:32,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:32,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:32,698 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:25:32,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:32,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:32,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration4_Loop [2020-11-29 22:25:32,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:32,698 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:32,699 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 22:25:32,729 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:32,729 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:32,736 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 22:25:32,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:32,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:25:32,739 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:32,739 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:32,739 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:32,740 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:25:32,740 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,743 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:25:32,746 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:25:32,746 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:32,749 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:25:32,749 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:25:32,749 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:25:32,749 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:32,784 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:25:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:25:32,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,821 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:25:32,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:32,822 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 22:25:32,822 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 22:25:32,822 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14 Second operand 2 states. [2020-11-29 22:25:32,835 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 27 transitions. cyclomatic complexity: 14. Second operand 2 states. Result 48 states and 76 transitions. Complement of second has 5 states. [2020-11-29 22:25:32,837 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 22:25:32,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:25:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-29 22:25:32,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 1 letters. [2020-11-29 22:25:32,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:32,837 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 1 letters. [2020-11-29 22:25:32,837 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:32,838 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-29 22:25:32,838 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:32,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 48 states and 76 transitions. [2020-11-29 22:25:32,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:25:32,841 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 48 states to 32 states and 52 transitions. [2020-11-29 22:25:32,841 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-11-29 22:25:32,841 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2020-11-29 22:25:32,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 52 transitions. [2020-11-29 22:25:32,841 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:25:32,841 INFO L691 BuchiCegarLoop]: Abstraction has 32 states and 52 transitions. [2020-11-29 22:25:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 52 transitions. [2020-11-29 22:25:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 17. [2020-11-29 22:25:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-29 22:25:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 26 transitions. [2020-11-29 22:25:32,844 INFO L714 BuchiCegarLoop]: Abstraction has 17 states and 26 transitions. [2020-11-29 22:25:32,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:25:32,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-29 22:25:32,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-11-29 22:25:32,845 INFO L87 Difference]: Start difference. First operand 17 states and 26 transitions. Second operand 7 states. [2020-11-29 22:25:32,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:25:32,877 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2020-11-29 22:25:32,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 22:25:32,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 27 transitions. [2020-11-29 22:25:32,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:25:32,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 27 transitions. [2020-11-29 22:25:32,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2020-11-29 22:25:32,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-11-29 22:25:32,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 27 transitions. [2020-11-29 22:25:32,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-11-29 22:25:32,879 INFO L691 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-11-29 22:25:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 27 transitions. [2020-11-29 22:25:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-29 22:25:32,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-11-29 22:25:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-11-29 22:25:32,881 INFO L714 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-11-29 22:25:32,881 INFO L594 BuchiCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-11-29 22:25:32,881 INFO L427 BuchiCegarLoop]: ======== Iteration 5============ [2020-11-29 22:25:32,882 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 27 transitions. [2020-11-29 22:25:32,882 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-11-29 22:25:32,882 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 22:25:32,882 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 22:25:32,883 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1] [2020-11-29 22:25:32,883 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-11-29 22:25:32,883 INFO L794 eck$LassoCheckResult]: Stem: 377#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 375#L-1 havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;main_~i~0 := 0;main_~k~0 := 9;main_~j~0 := -100; 376#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 378#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 387#L31-2 assume !!(main_~j~0 < 20);main_~j~0 := main_~i~0 + main_~j~0; 390#L31-2 assume !(main_~j~0 < 20); 384#L31-3 main_~k~0 := 4; 382#L35-2 assume !(main_~k~0 <= 3); 379#L35-3 assume !!(main_~i~0 <= 100);main_~i~0 := 1 + main_~i~0; 380#L31-2 assume !(main_~j~0 < 20); 383#L31-3 main_~k~0 := 4; 381#L35-2 [2020-11-29 22:25:32,883 INFO L796 eck$LassoCheckResult]: Loop: 381#L35-2 assume !!(main_~k~0 <= 3);main_~k~0 := 1 + main_~k~0; 381#L35-2 [2020-11-29 22:25:32,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:32,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1360977536, now seen corresponding path program 1 times [2020-11-29 22:25:32,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:32,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617912774] [2020-11-29 22:25:32,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:25:32,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617912774] [2020-11-29 22:25:32,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721448880] [2020-11-29 22:25:32,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 22:25:32,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:32,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 22:25:32,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,069 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:25:33,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-29 22:25:33,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-29 22:25:33,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357246463] [2020-11-29 22:25:33,070 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-11-29 22:25:33,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:33,070 INFO L82 PathProgramCache]: Analyzing trace with hash 64, now seen corresponding path program 2 times [2020-11-29 22:25:33,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 22:25:33,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427587604] [2020-11-29 22:25:33,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 22:25:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:33,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:25:33,077 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:25:33,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 22:25:33,095 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:33,095 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:33,095 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:33,095 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:33,095 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 22:25:33,095 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:33,095 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:33,095 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:33,095 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2020-11-29 22:25:33,095 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:33,096 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:33,096 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 22:25:33,126 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:33,126 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:33,129 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 22:25:33,130 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:33,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 22:25:33,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 22:25:33,182 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-11-29 22:25:33,184 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 22:25:33,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 22:25:33,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 22:25:33,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 22:25:33,184 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 22:25:33,184 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:33,184 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 22:25:33,184 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 22:25:33,184 INFO L133 ssoRankerPreferences]: Filename of dumped script: cggmp2005b.i_Iteration5_Loop [2020-11-29 22:25:33,184 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 22:25:33,184 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 22:25:33,185 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 22:25:33,230 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 22:25:33,230 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:33,233 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 22:25:33,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 22:25:33,235 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 22:25:33,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 22:25:33,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 22:25:33,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 22:25:33,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 22:25:33,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:33,239 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 22:25:33,241 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-11-29 22:25:33,241 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8b8c3f-95b3-4ed7-b8da-897be4d3660c/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 22:25:33,244 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-29 22:25:33,244 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-11-29 22:25:33,245 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 22:25:33,245 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = -2*ULTIMATE.start_main_~k~0 + 7 Supporting invariants [] Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 22:25:33,280 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-11-29 22:25:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:33,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:25:33,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:33,329 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:25:33,329 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,329 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 22:25:33,330 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 22:25:33,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-11-29 22:25:33,344 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 44 states and 69 transitions. Complement of second has 5 states. [2020-11-29 22:25:33,349 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 22:25:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:25:33,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-29 22:25:33,350 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2020-11-29 22:25:33,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:33,350 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 22:25:33,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:33,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:25:33,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:33,455 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:25:33,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,456 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 22:25:33,456 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 22:25:33,457 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-11-29 22:25:33,484 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 44 states and 69 transitions. Complement of second has 5 states. [2020-11-29 22:25:33,485 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 22:25:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:25:33,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-11-29 22:25:33,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 1 letters. [2020-11-29 22:25:33,486 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:33,486 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2020-11-29 22:25:33,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:25:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:33,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-29 22:25:33,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:25:33,528 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 22:25:33,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 22:25:33,528 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 22:25:33,529 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 22:25:33,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13 Second operand 2 states. [2020-11-29 22:25:33,546 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 27 transitions. cyclomatic complexity: 13. Second operand 2 states. Result 33 states and 49 transitions. Complement of second has 4 states. [2020-11-29 22:25:33,546 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 22:25:33,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-11-29 22:25:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2020-11-29 22:25:33,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 1 letters. [2020-11-29 22:25:33,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:33,547 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 1 letters. [2020-11-29 22:25:33,547 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:33,548 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2020-11-29 22:25:33,548 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 22:25:33,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 49 transitions. [2020-11-29 22:25:33,549 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:25:33,549 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2020-11-29 22:25:33,549 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:25:33,549 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:25:33,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:25:33,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:25:33,550 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:25:33,550 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:25:33,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 22:25:33,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 22:25:33,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-11-29 22:25:33,550 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 9 states. [2020-11-29 22:25:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 22:25:33,551 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-11-29 22:25:33,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 22:25:33,551 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-11-29 22:25:33,551 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:25:33,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 22:25:33,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 22:25:33,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 22:25:33,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 22:25:33,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 22:25:33,552 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:25:33,552 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:25:33,552 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 22:25:33,552 INFO L427 BuchiCegarLoop]: ======== Iteration 6============ [2020-11-29 22:25:33,552 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 22:25:33,552 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 22:25:33,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 22:25:33,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 10:25:33 BoogieIcfgContainer [2020-11-29 22:25:33,558 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 22:25:33,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:25:33,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:25:33,558 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:25:33,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:25:29" (3/4) ... [2020-11-29 22:25:33,562 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 22:25:33,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:25:33,563 INFO L168 Benchmark]: Toolchain (without parser) took 4892.71 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 69.1 MB in the beginning and 90.5 MB in the end (delta: -21.4 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-29 22:25:33,563 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:25:33,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.16 ms. Allocated memory is still 100.7 MB. Free memory was 69.0 MB in the beginning and 78.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 22:25:33,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 77.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:25:33,565 INFO L168 Benchmark]: Boogie Preprocessor took 20.25 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 75.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:25:33,565 INFO L168 Benchmark]: RCFGBuilder took 269.48 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 65.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:25:33,566 INFO L168 Benchmark]: BuchiAutomizer took 4311.84 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 65.0 MB in the beginning and 91.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-29 22:25:33,566 INFO L168 Benchmark]: Witness Printer took 3.71 ms. Allocated memory is still 127.9 MB. Free memory was 91.6 MB in the beginning and 90.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:25:33,569 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 40.0 MB in the beginning and 39.9 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 249.16 ms. Allocated memory is still 100.7 MB. Free memory was 69.0 MB in the beginning and 78.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.04 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 77.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.25 ms. Allocated memory is still 100.7 MB. Free memory was 77.0 MB in the beginning and 75.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 269.48 ms. Allocated memory is still 100.7 MB. Free memory was 75.9 MB in the beginning and 65.0 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4311.84 ms. Allocated memory was 100.7 MB in the beginning and 127.9 MB in the end (delta: 27.3 MB). Free memory was 65.0 MB in the beginning and 91.6 MB in the end (delta: -26.6 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.71 ms. Allocated memory is still 127.9 MB. Free memory was 91.6 MB in the beginning and 90.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. 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 8 terminating modules (4 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 201 and consists of 3 locations. One deterministic module has affine ranking function -2 * j + 39 and consists of 5 locations. One deterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * k + 7 and consists of 3 locations. 4 modules have a trivial ranking function, the largest among these consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 18 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 4. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 82 SDtfs, 51 SDslu, 39 SDs, 0 SdLazy, 45 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT2 lasso1 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax100 hnf98 lsp85 ukn92 mio100 lsp93 div100 bol100 ite100 ukn100 eq164 hnf93 smp100 dnf100 smp100 tf111 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 3 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...