./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 51c86dc5019658537c4cb35ed62637baeb91c588 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 02:57:56,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:57:56,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:57:56,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:57:56,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:57:56,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:57:56,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:57:56,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:57:56,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:57:56,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:57:56,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:57:56,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:57:56,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:57:56,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:57:56,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:57:56,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:57:56,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:57:56,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:57:56,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:57:56,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:57:56,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:57:56,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:57:56,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:57:56,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:57:56,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:57:56,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:57:56,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:57:56,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:57:56,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:57:56,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:57:56,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:57:56,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:57:56,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:57:56,379 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:57:56,380 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:57:56,380 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:57:56,381 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:57:56,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:57:56,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:57:56,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:57:56,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:57:56,388 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 02:57:56,429 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:57:56,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:57:56,431 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:57:56,431 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:57:56,432 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:57:56,432 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 02:57:56,432 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 02:57:56,432 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 02:57:56,433 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 02:57:56,433 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 02:57:56,434 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 02:57:56,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:57:56,435 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 02:57:56,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:57:56,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:57:56,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 02:57:56,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 02:57:56,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 02:57:56,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:57:56,436 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 02:57:56,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:57:56,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 02:57:56,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:57:56,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:57:56,438 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 02:57:56,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:57:56,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:57:56,438 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:57:56,439 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 02:57:56,440 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 02:57:56,440 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_b1e75f48-f1ba-40fc-8c72-f488253396eb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51c86dc5019658537c4cb35ed62637baeb91c588 [2020-11-28 02:57:56,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:57:56,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:57:56,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:57:56,766 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:57:56,767 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:57:56,768 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i [2020-11-28 02:57:56,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/data/e407d860e/b6180be050a640f6949551e1feb4ccaf/FLAG933e1a4aa [2020-11-28 02:57:57,428 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:57:57,432 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncpy-alloca-1.i [2020-11-28 02:57:57,458 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/data/e407d860e/b6180be050a640f6949551e1feb4ccaf/FLAG933e1a4aa [2020-11-28 02:57:57,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/data/e407d860e/b6180be050a640f6949551e1feb4ccaf [2020-11-28 02:57:57,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:57:57,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:57:57,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:57,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:57:57,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:57:57,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:57,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba69ab5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:57, skipping insertion in model container [2020-11-28 02:57:57,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:57:57" (1/1) ... [2020-11-28 02:57:57,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:57:57,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:57:58,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:58,100 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:57:58,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:57:58,197 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:57:58,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58 WrapperNode [2020-11-28 02:57:58,199 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:57:58,201 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:58,201 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:57:58,201 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:57:58,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:57:58,245 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:57:58,245 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:57:58,245 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:57:58,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... [2020-11-28 02:57:58,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:57:58,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:57:58,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:57:58,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:57:58,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:57:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 02:57:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 02:57:58,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:57:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 02:57:58,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:57:58,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:57:58,813 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:57:58,814 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 02:57:58,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:58 BoogieIcfgContainer [2020-11-28 02:57:58,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:57:58,819 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 02:57:58,819 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 02:57:58,823 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 02:57:58,823 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:58,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 02:57:57" (1/3) ... [2020-11-28 02:57:58,826 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45c3b7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:58, skipping insertion in model container [2020-11-28 02:57:58,826 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:58,826 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:57:58" (2/3) ... [2020-11-28 02:57:58,827 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45c3b7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 02:57:58, skipping insertion in model container [2020-11-28 02:57:58,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 02:57:58,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:58" (3/3) ... [2020-11-28 02:57:58,829 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncpy-alloca-1.i [2020-11-28 02:57:58,895 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 02:57:58,896 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 02:57:58,896 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 02:57:58,896 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:57:58,896 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:57:58,896 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 02:57:58,896 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:57:58,897 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 02:57:58,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-28 02:57:58,937 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-28 02:57:58,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:58,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:58,944 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:57:58,944 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:58,945 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 02:57:58,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-28 02:57:58,949 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-28 02:57:58,949 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 02:57:58,949 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 02:57:58,950 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 02:57:58,950 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-28 02:57:58,960 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.offset, main_~length~0, main_~n~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~n~0 := main_#t~nondet9;havoc main_#t~nondet9; 4#L566true assume !(main_~length~0 < 1); 9#L566-2true assume !(main_~n~0 < 1); 3#L569-1true call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1), 1);cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset, cstrncpy_#in~src.base, cstrncpy_#in~src.offset, cstrncpy_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset, main_~n~0;havoc cstrncpy_#res.base, cstrncpy_#res.offset;havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, cstrncpy_#t~mem5, cstrncpy_#t~post7.base, cstrncpy_#t~post7.offset, cstrncpy_#t~pre6, cstrncpy_#t~pre2, cstrncpy_~d~0.base, cstrncpy_~d~0.offset, cstrncpy_~s~0.base, cstrncpy_~s~0.offset, cstrncpy_~dst.base, cstrncpy_~dst.offset, cstrncpy_~src.base, cstrncpy_~src.offset, cstrncpy_~n;cstrncpy_~dst.base, cstrncpy_~dst.offset := cstrncpy_#in~dst.base, cstrncpy_#in~dst.offset;cstrncpy_~src.base, cstrncpy_~src.offset := cstrncpy_#in~src.base, cstrncpy_#in~src.offset;cstrncpy_~n := cstrncpy_#in~n; 16#L550true assume 0 != cstrncpy_~n % 4294967296;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_~dst.base, cstrncpy_~dst.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_~src.base, cstrncpy_~src.offset; 18#L553-4true [2020-11-28 02:57:58,961 INFO L796 eck$LassoCheckResult]: Loop: 18#L553-4true cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset := cstrncpy_~d~0.base, cstrncpy_~d~0.offset;cstrncpy_~d~0.base, cstrncpy_~d~0.offset := cstrncpy_#t~post3.base, 1 + cstrncpy_#t~post3.offset;cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset := cstrncpy_~s~0.base, cstrncpy_~s~0.offset;cstrncpy_~s~0.base, cstrncpy_~s~0.offset := cstrncpy_#t~post4.base, 1 + cstrncpy_#t~post4.offset;call cstrncpy_#t~mem5 := read~int(cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset, 1);call write~int(cstrncpy_#t~mem5, cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset, 1); 6#L554true assume !(0 == cstrncpy_#t~mem5);havoc cstrncpy_#t~post3.base, cstrncpy_#t~post3.offset;havoc cstrncpy_#t~post4.base, cstrncpy_#t~post4.offset;havoc cstrncpy_#t~mem5; 12#L553-1true cstrncpy_#t~pre2 := cstrncpy_~n - 1;cstrncpy_~n := cstrncpy_~n - 1; 13#L553-2true assume !!(0 != cstrncpy_#t~pre2 % 4294967296);havoc cstrncpy_#t~pre2; 18#L553-4true [2020-11-28 02:57:58,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:58,972 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2020-11-28 02:57:58,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:58,985 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376777026] [2020-11-28 02:57:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,206 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,236 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:59,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1618712, now seen corresponding path program 1 times [2020-11-28 02:57:59,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:59,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850083643] [2020-11-28 02:57:59,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,291 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,311 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,323 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:59,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:57:59,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1592246563, now seen corresponding path program 1 times [2020-11-28 02:57:59,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:57:59,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511809198] [2020-11-28 02:57:59,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:57:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 02:57:59,473 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 02:57:59,497 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 02:57:59,654 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-11-28 02:58:00,188 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2020-11-28 02:58:00,374 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-11-28 02:58:00,392 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 02:58:00,393 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 02:58:00,393 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 02:58:00,393 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 02:58:00,393 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 02:58:00,394 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:00,394 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 02:58:00,394 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 02:58:00,394 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncpy-alloca-1.i_Iteration1_Lasso [2020-11-28 02:58:00,394 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 02:58:00,394 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 02:58:00,426 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,437 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,453 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,469 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:00,473 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,021 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2020-11-28 02:58:01,273 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-11-28 02:58:01,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,298 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 02:58:01,799 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2020-11-28 02:58:02,004 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-11-28 02:58:02,368 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-11-28 02:58:02,482 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 02:58:02,487 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,511 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,514 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,514 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,515 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,515 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,515 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,518 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,555 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,555 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,558 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,558 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,593 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,595 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,596 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,596 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,596 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,597 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,597 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,606 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,631 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,633 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,633 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,634 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,634 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,634 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,635 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,635 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,648 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,673 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,675 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,675 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,675 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,676 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,676 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,676 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,677 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,680 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,706 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,707 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,707 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,707 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,707 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,711 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,712 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,720 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,743 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,745 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,745 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,745 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,745 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,745 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,746 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,746 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,749 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,773 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,775 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,775 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,775 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,775 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,775 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,776 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,776 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,778 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,818 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,818 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,854 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,856 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,856 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,861 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,861 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,866 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,900 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,901 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,901 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,902 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,902 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 02:58:02,903 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,905 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,928 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:02,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,936 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:02,937 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:02,944 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:02,974 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:02,976 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:02,976 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 02:58:02,976 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:02,976 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 02:58:02,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:02,980 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 02:58:02,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 02:58:02,991 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:03,032 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:03,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,035 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,035 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,035 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,057 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,057 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,073 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:03,097 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:03,102 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,102 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/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) [2020-11-28 02:58:03,160 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:03,161 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,162 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,162 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,162 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:03,166 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,166 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,170 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,203 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:03,204 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:03,210 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,210 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,217 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/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 [2020-11-28 02:58:03,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:03,244 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,244 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,244 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,244 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 02:58:03,250 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,250 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,257 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:03,309 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 02:58:03,312 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 02:58:03,312 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 02:58:03,312 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 02:58:03,312 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,336 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 02:58:03,336 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 02:58:03,370 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 02:58:03,508 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-11-28 02:58:03,509 INFO L444 ModelExtractionUtils]: 43 out of 49 variables were initially zero. Simplification set additionally 3 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b1e75f48-f1ba-40fc-8c72-f488253396eb/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 02:58:03,596 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 02:58:03,600 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 02:58:03,600 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 02:58:03,601 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncpy_~d~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1) = -1*ULTIMATE.start_cstrncpy_~d~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc10.base)_1 Supporting invariants [] [2020-11-28 02:58:03,696 INFO L297 tatePredicateManager]: 12 out of 13 supporting invariants were superfluous and have been removed [2020-11-28 02:58:03,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 02:58:03,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:58:03,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 02:58:03,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:03,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:58:03,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 02:58:03,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:58:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:58:03,933 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2020-11-28 02:58:03,934 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 4 states. [2020-11-28 02:58:04,074 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 4 states. Result 37 states and 46 transitions. Complement of second has 7 states. [2020-11-28 02:58:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 02:58:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 02:58:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2020-11-28 02:58:04,079 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 4 letters. [2020-11-28 02:58:04,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:04,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 10 letters. Loop has 4 letters. [2020-11-28 02:58:04,080 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:04,080 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 6 letters. Loop has 8 letters. [2020-11-28 02:58:04,081 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 02:58:04,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 46 transitions. [2020-11-28 02:58:04,083 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:58:04,086 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2020-11-28 02:58:04,087 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 02:58:04,087 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 02:58:04,087 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 02:58:04,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 02:58:04,087 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:04,087 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:04,087 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:58:04,087 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 02:58:04,088 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:58:04,088 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 02:58:04,088 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 02:58:04,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 02:58:04 BoogieIcfgContainer [2020-11-28 02:58:04,093 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 02:58:04,095 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:58:04,095 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:58:04,095 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:58:04,096 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:57:58" (3/4) ... [2020-11-28 02:58:04,099 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 02:58:04,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:58:04,100 INFO L168 Benchmark]: Toolchain (without parser) took 6401.28 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 60.1 MB in the beginning and 73.0 MB in the end (delta: -12.9 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,101 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory was 47.9 MB in the beginning and 47.9 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:04,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 495.89 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 56.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,110 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.81 ms. Allocated memory is still 90.2 MB. Free memory was 56.0 MB in the beginning and 54.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,110 INFO L168 Benchmark]: Boogie Preprocessor took 33.08 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 53.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:04,111 INFO L168 Benchmark]: RCFGBuilder took 538.28 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 82.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,112 INFO L168 Benchmark]: BuchiAutomizer took 5275.68 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 82.3 MB in the beginning and 74.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2020-11-28 02:58:04,112 INFO L168 Benchmark]: Witness Printer took 4.03 ms. Allocated memory is still 132.1 MB. Free memory was 74.1 MB in the beginning and 73.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:58:04,121 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 90.2 MB. Free memory was 47.9 MB in the beginning and 47.9 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 495.89 ms. Allocated memory is still 90.2 MB. Free memory was 59.9 MB in the beginning and 56.0 MB in the end (delta: 3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.81 ms. Allocated memory is still 90.2 MB. Free memory was 56.0 MB in the beginning and 54.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.08 ms. Allocated memory is still 90.2 MB. Free memory was 54.2 MB in the beginning and 53.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 538.28 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.7 MB in the beginning and 82.3 MB in the end (delta: -29.6 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5275.68 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 82.3 MB in the beginning and 74.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. * Witness Printer took 4.03 ms. Allocated memory is still 132.1 MB. Free memory was 74.1 MB in the beginning and 73.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * d + unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 21 SDslu, 15 SDs, 0 SdLazy, 10 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital229 mio100 ax107 hnf99 lsp90 ukn95 mio100 lsp52 div169 bol100 ite100 ukn100 eq177 hnf63 smp93 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...