./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 9856f7645e91c0d9454d45981854535d3bc496b2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:36:09,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:36:09,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:36:09,413 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:36:09,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:36:09,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:36:09,418 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:36:09,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:36:09,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:36:09,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:36:09,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:36:09,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:36:09,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:36:09,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:36:09,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:36:09,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:36:09,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:36:09,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:36:09,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:36:09,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:36:09,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:36:09,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:36:09,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:36:09,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:36:09,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:36:09,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:36:09,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:36:09,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:36:09,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:36:09,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:36:09,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:36:09,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:36:09,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:36:09,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:36:09,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:36:09,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:36:09,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:36:09,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:36:09,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:36:09,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:36:09,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:36:09,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-29 21:36:09,487 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:36:09,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:36:09,488 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:36:09,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:36:09,489 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:36:09,489 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 21:36:09,489 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 21:36:09,490 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 21:36:09,490 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 21:36:09,490 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 21:36:09,491 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 21:36:09,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:36:09,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:36:09,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:36:09,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:36:09,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 21:36:09,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 21:36:09,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 21:36:09,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:36:09,493 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 21:36:09,493 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:36:09,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 21:36:09,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:36:09,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:36:09,495 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 21:36:09,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:36:09,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:36:09,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:36:09,496 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 21:36:09,497 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 21:36:09,497 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_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9856f7645e91c0d9454d45981854535d3bc496b2 [2020-11-29 21:36:09,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:36:09,752 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:36:09,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:36:09,760 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:36:09,761 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:36:09,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c [2020-11-29 21:36:09,846 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/data/b881bfe59/08052c1cbc9e493a89d0183a81697da6/FLAG901379ea4 [2020-11-29 21:36:10,270 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:36:10,271 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/sv-benchmarks/c/termination-crafted-lit/strchr-2.c [2020-11-29 21:36:10,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/data/b881bfe59/08052c1cbc9e493a89d0183a81697da6/FLAG901379ea4 [2020-11-29 21:36:10,650 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/data/b881bfe59/08052c1cbc9e493a89d0183a81697da6 [2020-11-29 21:36:10,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:36:10,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:36:10,659 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:10,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:36:10,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:36:10,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290794a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10, skipping insertion in model container [2020-11-29 21:36:10,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:36:10,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:36:10,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:10,875 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:36:10,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:36:10,910 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:36:10,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10 WrapperNode [2020-11-29 21:36:10,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:36:10,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:10,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:36:10,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:36:10,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:36:10,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:36:10,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:36:10,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:36:10,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... [2020-11-29 21:36:10,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:36:10,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:36:10,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:36:10,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:36:10,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:36:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 21:36:11,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:36:11,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:36:11,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:36:11,283 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:36:11,284 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:36:11,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:11 BoogieIcfgContainer [2020-11-29 21:36:11,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:36:11,286 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 21:36:11,286 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 21:36:11,289 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 21:36:11,290 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:36:11,290 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 09:36:10" (1/3) ... [2020-11-29 21:36:11,291 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3eafca8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:36:11, skipping insertion in model container [2020-11-29 21:36:11,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:36:11,292 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:36:10" (2/3) ... [2020-11-29 21:36:11,292 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3eafca8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 09:36:11, skipping insertion in model container [2020-11-29 21:36:11,292 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 21:36:11,293 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:11" (3/3) ... [2020-11-29 21:36:11,294 INFO L373 chiAutomizerObserver]: Analyzing ICFG strchr-2.c [2020-11-29 21:36:11,361 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 21:36:11,362 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 21:36:11,362 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 21:36:11,362 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:36:11,362 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:36:11,362 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 21:36:11,362 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:36:11,363 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 21:36:11,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 21:36:11,392 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 21:36:11,392 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:11,392 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:11,397 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 21:36:11,398 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 21:36:11,398 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 21:36:11,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2020-11-29 21:36:11,400 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 21:36:11,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 21:36:11,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 21:36:11,400 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-29 21:36:11,400 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 21:36:11,407 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 9#L-1true havoc main_#res;havoc main_#t~ret8.base, main_#t~ret8.offset, main_#t~nondet9, main_#t~ret10.base, main_#t~ret10.offset;havoc build_nondet_String_#res.base, build_nondet_String_#res.offset;havoc build_nondet_String_#t~nondet0, build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset, build_nondet_String_~length~0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset;build_nondet_String_~length~0 := build_nondet_String_#t~nondet0;havoc build_nondet_String_#t~nondet0; 16#L14true assume !(build_nondet_String_~length~0 < 1); 13#L14-2true call build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset := #Ultimate.allocOnHeap(build_nondet_String_~length~0);build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset := build_nondet_String_#t~malloc1.base, build_nondet_String_#t~malloc1.offset;call write~int(0, build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset + (build_nondet_String_~length~0 - 1), 1);build_nondet_String_#res.base, build_nondet_String_#res.offset := build_nondet_String_~nondetString~0.base, build_nondet_String_~nondetString~0.offset; 6#L19true main_#t~ret8.base, main_#t~ret8.offset := build_nondet_String_#res.base, build_nondet_String_#res.offset;cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_#t~ret8.base, main_#t~ret8.offset, main_#t~nondet9;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset, cstrchr_#t~mem2, cstrchr_#t~mem3, cstrchr_#t~short4, cstrchr_#t~mem6, cstrchr_#t~ite7.base, cstrchr_#t~ite7.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 3#L31-5true [2020-11-29 21:36:11,408 INFO L796 eck$LassoCheckResult]: Loop: 3#L31-5true call cstrchr_#t~mem2 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := 0 != cstrchr_#t~mem2; 7#L31-1true assume cstrchr_#t~short4;call cstrchr_#t~mem3 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short4 := cstrchr_#t~mem3 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 5#L31-3true assume !!cstrchr_#t~short4;havoc cstrchr_#t~mem2;havoc cstrchr_#t~mem3;havoc cstrchr_#t~short4;cstrchr_#t~post5.base, cstrchr_#t~post5.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post5.base, 1 + cstrchr_#t~post5.offset;havoc cstrchr_#t~post5.base, cstrchr_#t~post5.offset; 3#L31-5true [2020-11-29 21:36:11,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:11,414 INFO L82 PathProgramCache]: Analyzing trace with hash 28695750, now seen corresponding path program 1 times [2020-11-29 21:36:11,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:11,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560613993] [2020-11-29 21:36:11,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:11,605 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:11,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:11,643 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:11,666 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:11,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:11,668 INFO L82 PathProgramCache]: Analyzing trace with hash 45783, now seen corresponding path program 1 times [2020-11-29 21:36:11,668 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:11,668 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727016257] [2020-11-29 21:36:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:11,683 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:11,696 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:11,699 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:11,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:11,701 INFO L82 PathProgramCache]: Analyzing trace with hash 176612338, now seen corresponding path program 1 times [2020-11-29 21:36:11,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:36:11,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607149630] [2020-11-29 21:36:11,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:36:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:11,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:36:11,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:36:11,789 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:36:11,969 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-11-29 21:36:12,288 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-11-29 21:36:12,409 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-11-29 21:36:12,431 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 21:36:12,431 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 21:36:12,432 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 21:36:12,432 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 21:36:12,432 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 21:36:12,432 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:12,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 21:36:12,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 21:36:12,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: strchr-2.c_Iteration1_Lasso [2020-11-29 21:36:12,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 21:36:12,433 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 21:36:12,468 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 21:36:12,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 21:36:12,478 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 21:36:12,483 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 21:36:12,487 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 21:36:12,492 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 21:36:12,495 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 21:36:12,499 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 21:36:12,503 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 21:36:12,508 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 21:36:12,511 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 21:36:12,514 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 21:36:12,517 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 21:36:12,520 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 21:36:12,523 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 21:36:12,527 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 21:36:12,733 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-11-29 21:36:12,843 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 21:36:13,477 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2020-11-29 21:36:13,705 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2020-11-29 21:36:13,789 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 21:36:13,794 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:13,814 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 21:36:13,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:13,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:13,817 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:13,817 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:13,817 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:13,819 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:13,819 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:13,822 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:13,862 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 21:36:13,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:13,863 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:13,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:13,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:13,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:13,864 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:13,864 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:13,865 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 [2020-11-29 21:36:13,893 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 21:36:13,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:13,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:13,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:13,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:13,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:13,896 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:13,896 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:13,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 [2020-11-29 21:36:13,938 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:36:13,940 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:13,940 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:13,940 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:13,940 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:13,940 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:13,947 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:13,947 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:13,954 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 [2020-11-29 21:36:13,984 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 21:36:13,985 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:13,985 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:13,985 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:13,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:13,989 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 21:36:13,990 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 21:36:13,995 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:14,044 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 21:36:14,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,046 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,052 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,076 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 21:36:14,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,102 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:36:14,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,103 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,104 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,104 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,104 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,105 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 [2020-11-29 21:36:14,127 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 21:36:14,129 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,129 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,132 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 21:36:14,132 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 21:36:14,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:14,191 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 21:36:14,192 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,192 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,193 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,193 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,193 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,194 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,194 INFO L402 nArgumentSynthesizer]: A total of 0 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 21:36:14,196 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 [2020-11-29 21:36:14,238 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 21:36:14,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,240 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,241 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,241 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,269 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 21:36:14,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,271 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,271 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,271 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,272 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,272 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,273 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,301 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 21:36:14,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,305 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:14,330 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 21:36:14,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,334 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,334 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,339 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,361 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 21:36:14,362 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,362 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 21:36:14,362 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,362 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,362 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,363 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 21:36:14,363 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-29 21:36:14,367 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,389 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 21:36:14,390 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,390 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,390 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,391 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,394 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 21:36:14,394 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 21:36:14,404 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 [2020-11-29 21:36:14,426 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 21:36:14,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,428 INFO L204 nArgumentSynthesizer]: 6 loop disjuncts [2020-11-29 21:36:14,428 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,549 INFO L401 nArgumentSynthesizer]: We have 96 Motzkin's Theorem applications. [2020-11-29 21:36:14,550 INFO L402 nArgumentSynthesizer]: A total of 12 supporting invariants were added. [2020-11-29 21:36:14,681 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:14,717 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 21:36:14,719 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,725 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 21:36:14,725 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 21:36:14,730 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/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 21:36:14,794 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 21:36:14,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,796 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,796 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,801 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 21:36:14,801 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 21:36:14,808 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:14,847 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 21:36:14,849 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,849 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-29 21:36:14,849 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,850 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,859 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-29 21:36:14,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,874 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:14,897 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 21:36:14,900 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 21:36:14,901 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 21:36:14,901 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 21:36:14,901 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 21:36:14,917 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 21:36:14,917 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 21:36:14,934 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 21:36:15,116 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 21:36:15,116 INFO L444 ModelExtractionUtils]: 9 out of 31 variables were initially zero. Simplification set additionally 19 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0c9908ee-56e1-4ae0-b282-2a76e2625a1a/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 21:36:15,131 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 21:36:15,135 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-29 21:36:15,136 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 21:36:15,137 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset, v_rep(select #length ULTIMATE.start_build_nondet_String_#t~malloc1.base)_1) = -1*ULTIMATE.start_cstrchr_~s.offset + 1*v_rep(select #length ULTIMATE.start_build_nondet_String_#t~malloc1.base)_1 Supporting invariants [] [2020-11-29 21:36:15,196 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-11-29 21:36:15,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-29 21:36:15,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:36:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:15,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2020-11-29 21:36:15,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:36:15,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:36:15,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:36:15,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:36:15,341 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 21:36:15,356 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 [2020-11-29 21:36:15,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2020-11-29 21:36:15,431 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 32 states and 40 transitions. Complement of second has 6 states. [2020-11-29 21:36:15,432 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 [2020-11-29 21:36:15,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-29 21:36:15,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2020-11-29 21:36:15,435 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2020-11-29 21:36:15,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:36:15,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 8 letters. Loop has 3 letters. [2020-11-29 21:36:15,436 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:36:15,436 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 6 letters. [2020-11-29 21:36:15,437 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 21:36:15,437 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 40 transitions. [2020-11-29 21:36:15,440 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:36:15,442 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2020-11-29 21:36:15,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 21:36:15,443 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 21:36:15,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 21:36:15,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 21:36:15,444 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:15,444 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:15,444 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:36:15,444 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 21:36:15,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:36:15,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 21:36:15,490 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 21:36:15,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 09:36:15 BoogieIcfgContainer [2020-11-29 21:36:15,495 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 21:36:15,495 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:36:15,495 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:36:15,495 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:36:15,496 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:36:11" (3/4) ... [2020-11-29 21:36:15,498 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:36:15,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:36:15,500 INFO L168 Benchmark]: Toolchain (without parser) took 4845.26 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 57.7 MB in the beginning and 113.7 MB in the end (delta: -56.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:15,500 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:15,501 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.30 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 68.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:15,502 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.72 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:15,502 INFO L168 Benchmark]: Boogie Preprocessor took 21.49 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:15,503 INFO L168 Benchmark]: RCFGBuilder took 320.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 53.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:15,503 INFO L168 Benchmark]: BuchiAutomizer took 4208.46 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 53.6 MB in the beginning and 113.7 MB in the end (delta: -60.1 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:36:15,504 INFO L168 Benchmark]: Witness Printer took 3.36 ms. Allocated memory is still 138.4 MB. Free memory is still 113.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:36:15,511 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 90.2 MB. Free memory was 63.1 MB in the beginning and 63.1 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 252.30 ms. Allocated memory is still 90.2 MB. Free memory was 57.5 MB in the beginning and 68.7 MB in the end (delta: -11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.72 ms. Allocated memory is still 90.2 MB. Free memory was 68.7 MB in the beginning and 67.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.49 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 320.00 ms. Allocated memory is still 90.2 MB. Free memory was 66.2 MB in the beginning and 53.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4208.46 ms. Allocated memory was 90.2 MB in the beginning and 138.4 MB in the end (delta: 48.2 MB). Free memory was 53.6 MB in the beginning and 113.7 MB in the end (delta: -60.1 MB). Peak memory consumption was 65.6 MB. Max. memory is 16.1 GB. * Witness Printer took 3.36 ms. Allocated memory is still 138.4 MB. Free memory is still 113.7 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 * s + unknown-#length-unknown[malloc(length * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 12 SDtfs, 25 SDslu, 10 SDs, 0 SdLazy, 11 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital164 mio100 ax100 hnf98 lsp96 ukn89 mio100 lsp34 div143 bol100 ite100 ukn100 eq155 hnf77 smp100 dnf746 smp27 tf100 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 256ms VariablesStem: 3 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 6 SupportingInvariants: 12 MotzkinApplications: 96 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...