./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7ac509d7b3f1ef173e01ced3ce9249a58ee1c04d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:09:33,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:09:33,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:09:33,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:09:33,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:09:33,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:09:33,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:09:33,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:09:33,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:09:33,530 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:09:33,531 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:09:33,534 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:09:33,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:09:33,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:09:33,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:09:33,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:09:33,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:09:33,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:09:33,554 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:09:33,566 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:09:33,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:09:33,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:09:33,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:09:33,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:09:33,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:09:33,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:09:33,588 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:09:33,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:09:33,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:09:33,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:09:33,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:09:33,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:09:33,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:09:33,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:09:33,600 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:09:33,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:09:33,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:09:33,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:09:33,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:09:33,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:09:33,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:09:33,607 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:09:33,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:09:33,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:09:33,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:09:33,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:09:33,660 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:09:33,660 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:09:33,660 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:09:33,660 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:09:33,661 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:09:33,661 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:09:33,661 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:09:33,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:09:33,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:09:33,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:09:33,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:09:33,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:09:33,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:09:33,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:09:33,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:09:33,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:09:33,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:09:33,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:09:33,665 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:09:33,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:09:33,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:09:33,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:09:33,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:09:33,666 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:09:33,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:09:33,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:09:33,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:09:33,667 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:09:33,668 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:09:33,669 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_06e671e1-f972-4413-8930-fb945bc7359f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ac509d7b3f1ef173e01ced3ce9249a58ee1c04d [2020-11-30 00:09:33,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:09:34,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:09:34,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:09:34,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:09:34,007 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:09:34,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2020-11-30 00:09:34,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/data/a762e3721/1ac8400b596e40919cc2bda1bc5030fc/FLAG31cbead2f [2020-11-30 00:09:34,689 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:09:34,690 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/sv-benchmarks/c/array-memsafety/openbsd_cstrnlen-alloca-1.i [2020-11-30 00:09:34,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/data/a762e3721/1ac8400b596e40919cc2bda1bc5030fc/FLAG31cbead2f [2020-11-30 00:09:34,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/data/a762e3721/1ac8400b596e40919cc2bda1bc5030fc [2020-11-30 00:09:34,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:09:34,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:09:34,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:09:34,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:09:34,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:09:34,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:09:34" (1/1) ... [2020-11-30 00:09:34,992 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f6b1c56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:34, skipping insertion in model container [2020-11-30 00:09:34,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:09:34" (1/1) ... [2020-11-30 00:09:35,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:09:35,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:09:35,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:09:35,434 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:09:35,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:09:35,570 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:09:35,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35 WrapperNode [2020-11-30 00:09:35,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:09:35,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:09:35,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:09:35,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:09:35,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:09:35,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:09:35,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:09:35,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:09:35,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,636 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... [2020-11-30 00:09:35,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:09:35,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:09:35,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:09:35,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:09:35,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:09:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:09:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:09:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:09:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:09:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:09:36,100 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:09:36,101 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:09:36,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:09:36 BoogieIcfgContainer [2020-11-30 00:09:36,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:09:36,110 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:09:36,110 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:09:36,116 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:09:36,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:09:36,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:09:34" (1/3) ... [2020-11-30 00:09:36,120 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1364ff99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:09:36, skipping insertion in model container [2020-11-30 00:09:36,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:09:36,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:09:35" (2/3) ... [2020-11-30 00:09:36,134 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1364ff99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:09:36, skipping insertion in model container [2020-11-30 00:09:36,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:09:36,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:09:36" (3/3) ... [2020-11-30 00:09:36,136 INFO L373 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrnlen-alloca-1.i [2020-11-30 00:09:36,222 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:09:36,223 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:09:36,223 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:09:36,223 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:09:36,223 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:09:36,224 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:09:36,224 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:09:36,224 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:09:36,252 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 00:09:36,283 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:09:36,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:09:36,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:09:36,302 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:09:36,302 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:09:36,302 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:09:36,302 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-11-30 00:09:36,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2020-11-30 00:09:36,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:09:36,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:09:36,308 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-11-30 00:09:36,308 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-30 00:09:36,332 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#L-1true havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 6#L524true assume !(main_~length1~0 < 1); 8#L524-2true assume !(main_~n~0 < 1); 4#L527-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 16#L532-3true [2020-11-30 00:09:36,334 INFO L796 eck$LassoCheckResult]: Loop: 16#L532-3true assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet10, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 13#L532-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 16#L532-3true [2020-11-30 00:09:36,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:36,350 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2020-11-30 00:09:36,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:36,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217274454] [2020-11-30 00:09:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:36,522 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:36,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:36,556 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:36,589 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:36,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:36,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1699, now seen corresponding path program 1 times [2020-11-30 00:09:36,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:36,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117689293] [2020-11-30 00:09:36,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:36,624 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:36,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:36,632 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:36,636 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:36,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:36,638 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935720, now seen corresponding path program 1 times [2020-11-30 00:09:36,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:36,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048274413] [2020-11-30 00:09:36,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:36,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:36,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:36,688 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:36,939 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-30 00:09:37,024 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:09:37,025 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:09:37,026 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:09:37,026 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:09:37,026 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:09:37,026 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:37,027 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:09:37,027 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:09:37,027 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration1_Lasso [2020-11-30 00:09:37,027 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:09:37,028 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:09:37,061 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,074 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,287 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-11-30 00:09:37,343 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,356 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,361 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,373 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:37,765 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:09:37,771 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:37,786 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 [2020-11-30 00:09:37,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:37,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:37,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:37,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:37,803 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:37,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:37,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:37,856 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 [2020-11-30 00:09:37,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:37,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:37,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:37,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:37,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:37,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:37,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:37,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:37,918 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 [2020-11-30 00:09:37,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:37,920 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:37,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:37,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:37,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:37,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:37,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:37,925 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:37,961 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 [2020-11-30 00:09:37,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:37,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:37,963 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:37,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:37,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:37,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:37,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:38,011 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 [2020-11-30 00:09:38,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:38,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:38,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:38,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:38,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:38,015 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:38,015 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:38,021 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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) [2020-11-30 00:09:38,048 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 [2020-11-30 00:09:38,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:38,050 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:38,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:38,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:38,051 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:38,051 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:38,052 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 [2020-11-30 00:09:38,067 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:38,104 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 [2020-11-30 00:09:38,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:38,106 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:38,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:38,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:38,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:38,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:38,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:38,166 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 [2020-11-30 00:09:38,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:38,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:38,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:38,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:38,181 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:38,181 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:38,198 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:09:38,263 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-11-30 00:09:38,264 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:38,286 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:38,349 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:09:38,349 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:09:38,350 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length1~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~length1~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-11-30 00:09:38,404 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2020-11-30 00:09:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:38,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 00:09:38,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:09:38,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:38,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:09:38,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:09:38,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:09:38,600 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-30 00:09:38,601 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 3 states. [2020-11-30 00:09:38,670 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 3 states. Result 39 states and 53 transitions. Complement of second has 7 states. [2020-11-30 00:09:38,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:09:38,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-30 00:09:38,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 35 transitions. [2020-11-30 00:09:38,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 5 letters. Loop has 2 letters. [2020-11-30 00:09:38,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:09:38,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 7 letters. Loop has 2 letters. [2020-11-30 00:09:38,681 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:09:38,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 35 transitions. Stem has 5 letters. Loop has 4 letters. [2020-11-30 00:09:38,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:09:38,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 53 transitions. [2020-11-30 00:09:38,696 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:09:38,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 13 states and 18 transitions. [2020-11-30 00:09:38,705 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2020-11-30 00:09:38,705 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-30 00:09:38,706 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2020-11-30 00:09:38,706 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:09:38,707 INFO L691 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-30 00:09:38,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2020-11-30 00:09:38,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 00:09:38,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:09:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2020-11-30 00:09:38,737 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-30 00:09:38,738 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2020-11-30 00:09:38,738 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:09:38,738 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2020-11-30 00:09:38,739 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:09:38,739 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:09:38,739 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:09:38,739 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:09:38,740 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:09:38,740 INFO L794 eck$LassoCheckResult]: Stem: 122#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 116#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 117#L524 assume !(main_~length1~0 < 1); 126#L524-2 assume !(main_~n~0 < 1); 120#L527-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 121#L532-3 assume !(main_~i~0 < main_~length1~0 - 1); 127#L532-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 128#L517-6 [2020-11-30 00:09:38,740 INFO L796 eck$LassoCheckResult]: Loop: 128#L517-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 118#L517-1 assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 119#L517-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~mem4;havoc cstrnlen_#t~short5; 123#L517-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 128#L517-6 [2020-11-30 00:09:38,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:38,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1806935662, now seen corresponding path program 1 times [2020-11-30 00:09:38,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:38,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825253479] [2020-11-30 00:09:38,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:38,765 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:38,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:38,786 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:38,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:38,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1942630, now seen corresponding path program 1 times [2020-11-30 00:09:38,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:38,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074953475] [2020-11-30 00:09:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:38,806 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:38,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:38,853 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:38,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:38,867 INFO L82 PathProgramCache]: Analyzing trace with hash -2087826349, now seen corresponding path program 1 times [2020-11-30 00:09:38,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:38,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763899340] [2020-11-30 00:09:38,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:39,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:09:39,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763899340] [2020-11-30 00:09:39,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:09:39,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-30 00:09:39,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191687564] [2020-11-30 00:09:39,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:09:39,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-30 00:09:39,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:09:39,215 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. cyclomatic complexity: 7 Second operand 7 states. [2020-11-30 00:09:39,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:09:39,342 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2020-11-30 00:09:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-30 00:09:39,344 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2020-11-30 00:09:39,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:09:39,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 14 states and 17 transitions. [2020-11-30 00:09:39,346 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-30 00:09:39,346 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-30 00:09:39,347 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2020-11-30 00:09:39,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:09:39,347 INFO L691 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2020-11-30 00:09:39,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2020-11-30 00:09:39,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2020-11-30 00:09:39,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 00:09:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-30 00:09:39,349 INFO L714 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-30 00:09:39,350 INFO L594 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-30 00:09:39,350 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-30 00:09:39,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2020-11-30 00:09:39,351 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-11-30 00:09:39,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:09:39,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:09:39,352 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:09:39,352 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-11-30 00:09:39,352 INFO L794 eck$LassoCheckResult]: Stem: 172#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 168#L-1 havoc main_#res;havoc main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11, main_~length1~0, main_~n~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 169#L524 assume !(main_~length1~0 < 1); 176#L524-2 assume !(main_~n~0 < 1); 170#L527-1 call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 171#L532-3 assume !!(main_~i~0 < main_~length1~0 - 1);call write~int(main_#t~nondet10, main_~nondetString1~0.base, main_~nondetString1~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 174#L532-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 175#L532-3 assume !(main_~i~0 < main_~length1~0 - 1); 177#L532-4 call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrnlen_#in~str.base, cstrnlen_#in~str.offset, cstrnlen_#in~maxlen := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~n~0;havoc cstrnlen_#res;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset, cstrnlen_#t~post3, cstrnlen_#t~mem4, cstrnlen_#t~short5, cstrnlen_~str.base, cstrnlen_~str.offset, cstrnlen_~maxlen, cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~str.base, cstrnlen_~str.offset := cstrnlen_#in~str.base, cstrnlen_#in~str.offset;cstrnlen_~maxlen := cstrnlen_#in~maxlen;havoc cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_~str.base, cstrnlen_~str.offset; 178#L517-6 [2020-11-30 00:09:39,352 INFO L796 eck$LassoCheckResult]: Loop: 178#L517-6 cstrnlen_#t~short5 := 0 != cstrnlen_~maxlen % 4294967296; 166#L517-1 assume cstrnlen_#t~short5;call cstrnlen_#t~mem4 := read~int(cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset, 1);cstrnlen_#t~short5 := 0 != cstrnlen_#t~mem4; 167#L517-3 assume !!cstrnlen_#t~short5;havoc cstrnlen_#t~mem4;havoc cstrnlen_#t~short5; 173#L517-5 cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset := cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset;cstrnlen_~cp~0.base, cstrnlen_~cp~0.offset := cstrnlen_#t~post2.base, 1 + cstrnlen_#t~post2.offset;havoc cstrnlen_#t~post2.base, cstrnlen_#t~post2.offset;cstrnlen_#t~post3 := cstrnlen_~maxlen;cstrnlen_~maxlen := cstrnlen_#t~post3 - 1;havoc cstrnlen_#t~post3; 178#L517-6 [2020-11-30 00:09:39,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:39,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1298440016, now seen corresponding path program 1 times [2020-11-30 00:09:39,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:39,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555066647] [2020-11-30 00:09:39,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:39,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:39,419 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:39,436 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:39,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:39,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1942630, now seen corresponding path program 2 times [2020-11-30 00:09:39,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:39,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975621466] [2020-11-30 00:09:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:39,455 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:39,477 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:39,480 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1066138571, now seen corresponding path program 1 times [2020-11-30 00:09:39,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:09:39,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301816077] [2020-11-30 00:09:39,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:09:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:39,515 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:39,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:09:39,560 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:09:39,566 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:09:39,957 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2020-11-30 00:09:40,077 INFO L210 LassoAnalysis]: Preferences: [2020-11-30 00:09:40,077 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-30 00:09:40,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-30 00:09:40,078 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-30 00:09:40,078 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-30 00:09:40,078 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:40,078 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-30 00:09:40,078 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-30 00:09:40,078 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrnlen-alloca-1.i_Iteration3_Lasso [2020-11-30 00:09:40,078 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-30 00:09:40,079 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-30 00:09:40,084 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,149 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,153 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,164 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,167 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,300 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-11-30 00:09:40,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-30 00:09:40,605 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-11-30 00:09:40,898 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-30 00:09:40,898 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:40,914 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 [2020-11-30 00:09:40,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:40,917 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:40,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:40,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:40,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:40,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:40,922 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:40,924 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:40,972 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 [2020-11-30 00:09:40,974 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:40,974 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:40,974 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:40,974 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:40,974 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:40,975 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:40,975 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:40,978 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:41,020 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 [2020-11-30 00:09:41,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,026 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,027 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,031 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:41,061 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 [2020-11-30 00:09:41,062 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,062 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,063 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,063 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:41,065 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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) [2020-11-30 00:09:41,109 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 [2020-11-30 00:09:41,111 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,114 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,114 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,121 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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) [2020-11-30 00:09:41,180 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 [2020-11-30 00:09:41,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,183 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,186 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,189 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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) [2020-11-30 00:09:41,251 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 [2020-11-30 00:09:41,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,255 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,257 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:41,260 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:41,314 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 [2020-11-30 00:09:41,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,318 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,318 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,320 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:41,374 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 [2020-11-30 00:09:41,376 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,376 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,376 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,376 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,376 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,377 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,377 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,379 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,418 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 [2020-11-30 00:09:41,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,420 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,420 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,420 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,420 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,421 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:41,425 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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) [2020-11-30 00:09:41,485 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 [2020-11-30 00:09:41,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,505 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,506 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,506 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,514 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/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 [2020-11-30 00:09:41,542 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 [2020-11-30 00:09:41,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,543 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,546 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,546 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:41,569 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,603 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 [2020-11-30 00:09:41,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,605 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,605 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,609 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,610 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:41,623 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,648 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 [2020-11-30 00:09:41,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,650 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,650 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,650 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,650 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,651 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,651 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:41,657 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,681 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 [2020-11-30 00:09:41,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,685 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,686 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:41,690 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:41,719 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 [2020-11-30 00:09:41,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,720 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,720 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:41,726 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,756 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 [2020-11-30 00:09:41,757 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,757 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-30 00:09:41,757 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,757 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,758 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,766 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-30 00:09:41,766 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-30 00:09:41,768 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,798 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 [2020-11-30 00:09:41,800 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-30 00:09:41,800 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-30 00:09:41,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-30 00:09:41,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-30 00:09:41,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-30 00:09:41,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-30 00:09:41,825 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-30 00:09:41,861 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2020-11-30 00:09:41,861 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_06e671e1-f972-4413-8930-fb945bc7359f/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-30 00:09:41,865 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:09:41,868 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-30 00:09:41,869 INFO L510 LassoAnalysis]: Proved termination. [2020-11-30 00:09:41,869 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrnlen_~cp~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2) = -1*ULTIMATE.start_cstrnlen_~cp~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2 Supporting invariants [] [2020-11-30 00:09:41,922 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2020-11-30 00:09:41,925 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:09:41,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:09:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:41,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 00:09:41,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:09:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:09:42,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:09:42,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:09:42,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:09:42,034 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 [2020-11-30 00:09:42,034 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-11-30 00:09:42,090 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 17 states and 21 transitions. Complement of second has 7 states. [2020-11-30 00:09:42,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-30 00:09:42,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-30 00:09:42,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2020-11-30 00:09:42,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 9 letters. Loop has 4 letters. [2020-11-30 00:09:42,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:09:42,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 13 letters. Loop has 4 letters. [2020-11-30 00:09:42,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:09:42,092 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 9 letters. Loop has 8 letters. [2020-11-30 00:09:42,092 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-30 00:09:42,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 21 transitions. [2020-11-30 00:09:42,093 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:09:42,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-11-30 00:09:42,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-30 00:09:42,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-30 00:09:42,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-30 00:09:42,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:09:42,094 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:09:42,094 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:09:42,094 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:09:42,094 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-11-30 00:09:42,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:09:42,095 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-30 00:09:42,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-30 00:09:42,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:09:42 BoogieIcfgContainer [2020-11-30 00:09:42,101 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:09:42,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:09:42,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:09:42,102 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:09:42,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:09:36" (3/4) ... [2020-11-30 00:09:42,106 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:09:42,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:09:42,109 INFO L168 Benchmark]: Toolchain (without parser) took 7139.18 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 55.9 MB in the beginning and 63.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:42,109 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 64.4 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:42,111 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.80 ms. Allocated memory is still 90.2 MB. Free memory was 55.6 MB in the beginning and 56.1 MB in the end (delta: -508.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:42,111 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:42,116 INFO L168 Benchmark]: Boogie Preprocessor took 32.34 ms. Allocated memory is still 90.2 MB. Free memory was 54.5 MB in the beginning and 53.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:42,117 INFO L168 Benchmark]: RCFGBuilder took 454.56 ms. Allocated memory is still 90.2 MB. Free memory was 53.3 MB in the beginning and 38.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:42,119 INFO L168 Benchmark]: BuchiAutomizer took 5990.80 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 38.1 MB in the beginning and 63.4 MB in the end (delta: -25.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:09:42,120 INFO L168 Benchmark]: Witness Printer took 4.98 ms. Allocated memory is still 132.1 MB. Free memory is still 63.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:09:42,130 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 90.2 MB. Free memory was 64.5 MB in the beginning and 64.4 MB in the end (delta: 31.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 592.80 ms. Allocated memory is still 90.2 MB. Free memory was 55.6 MB in the beginning and 56.1 MB in the end (delta: -508.5 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.60 ms. Allocated memory is still 90.2 MB. Free memory was 56.1 MB in the beginning and 54.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.34 ms. Allocated memory is still 90.2 MB. Free memory was 54.5 MB in the beginning and 53.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 454.56 ms. Allocated memory is still 90.2 MB. Free memory was 53.3 MB in the beginning and 38.1 MB in the end (delta: 15.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 5990.80 ms. Allocated memory was 90.2 MB in the beginning and 132.1 MB in the end (delta: 41.9 MB). Free memory was 38.1 MB in the beginning and 63.4 MB in the end (delta: -25.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Witness Printer took 4.98 ms. Allocated memory is still 132.1 MB. Free memory is still 63.4 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function length1 + -1 * i and consists of 5 locations. One deterministic module has affine ranking function -1 * cp + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 5.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 38 SDtfs, 59 SDslu, 52 SDs, 0 SdLazy, 45 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital121 mio100 ax115 hnf98 lsp74 ukn83 mio100 lsp57 div105 bol100 ite100 ukn100 eq167 hnf89 smp98 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 38ms 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...