./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 83897956e392064e8b9522b11a8bf4c25fb2a6e3 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:15:46,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:15:46,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:15:46,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:15:46,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:15:46,863 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:15:46,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:15:46,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:15:46,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:15:46,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:15:46,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:15:46,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:15:46,869 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:15:46,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:15:46,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:15:46,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:15:46,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:15:46,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:15:46,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:15:46,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:15:46,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:15:46,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:15:46,877 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:15:46,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:15:46,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:15:46,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:15:46,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:15:46,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:15:46,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:15:46,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:15:46,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:15:46,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:15:46,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:15:46,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:15:46,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:15:46,883 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:15:46,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:15:46,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:15:46,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:15:46,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:15:46,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:15:46,885 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 14:15:46,895 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:15:46,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:15:46,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:15:46,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:15:46,897 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 14:15:46,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:15:46,897 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 14:15:46,898 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:15:46,899 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 14:15:46,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:15:46,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:15:46,899 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 14:15:46,899 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:15:46,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:15:46,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:15:46,899 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 14:15:46,900 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 14:15:46,900 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 -> 83897956e392064e8b9522b11a8bf4c25fb2a6e3 [2019-12-07 14:15:46,998 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:15:47,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:15:47,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:15:47,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:15:47,010 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:15:47,011 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/../../sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i [2019-12-07 14:15:47,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/data/0b94c8cc7/0b805ee8a0084824a6b3293147859222/FLAGa411e065d [2019-12-07 14:15:47,496 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:15:47,496 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/sv-benchmarks/c/array-memsafety/cstrcpy-alloca-1.i [2019-12-07 14:15:47,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/data/0b94c8cc7/0b805ee8a0084824a6b3293147859222/FLAGa411e065d [2019-12-07 14:15:47,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/data/0b94c8cc7/0b805ee8a0084824a6b3293147859222 [2019-12-07 14:15:47,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:15:47,518 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:15:47,519 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:15:47,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:15:47,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:15:47,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a25c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47, skipping insertion in model container [2019-12-07 14:15:47,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:15:47,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:15:47,762 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:15:47,768 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:15:47,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:15:47,826 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:15:47,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47 WrapperNode [2019-12-07 14:15:47,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:15:47,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:15:47,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:15:47,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:15:47,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:15:47,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:15:47,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:15:47,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:15:47,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... [2019-12-07 14:15:47,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:15:47,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:15:47,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:15:47,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:15:47,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 14:15:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:15:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:15:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:15:47,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:15:47,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:15:48,062 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:15:48,062 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-07 14:15:48,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:15:48 BoogieIcfgContainer [2019-12-07 14:15:48,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:15:48,063 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 14:15:48,063 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 14:15:48,065 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 14:15:48,066 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:15:48,066 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 02:15:47" (1/3) ... [2019-12-07 14:15:48,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@219d85c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:15:48, skipping insertion in model container [2019-12-07 14:15:48,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:15:48,067 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:15:47" (2/3) ... [2019-12-07 14:15:48,067 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@219d85c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 02:15:48, skipping insertion in model container [2019-12-07 14:15:48,067 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 14:15:48,067 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:15:48" (3/3) ... [2019-12-07 14:15:48,068 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcpy-alloca-1.i [2019-12-07 14:15:48,097 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 14:15:48,097 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 14:15:48,097 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 14:15:48,097 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:15:48,097 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:15:48,097 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 14:15:48,097 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:15:48,097 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 14:15:48,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 14:15:48,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 14:15:48,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:15:48,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:15:48,124 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:15:48,124 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:15:48,124 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 14:15:48,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-12-07 14:15:48,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-12-07 14:15:48,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:15:48,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:15:48,126 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-12-07 14:15:48,126 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:15:48,130 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 8#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 4#L525true assume !(main_~length1~0 < 1); 6#L525-2true assume !(main_~length2~0 < 1); 17#L528-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 9#L535-3true [2019-12-07 14:15:48,131 INFO L796 eck$LassoCheckResult]: Loop: 9#L535-3true assume !!(main_~i~0 < main_~length2~0 - 1);call write~int(main_#t~nondet10, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 7#L535-2true main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 9#L535-3true [2019-12-07 14:15:48,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:48,134 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2019-12-07 14:15:48,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:48,140 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093868774] [2019-12-07 14:15:48,140 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:48,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:48,233 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:48,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:48,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1827, now seen corresponding path program 1 times [2019-12-07 14:15:48,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:48,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007678393] [2019-12-07 14:15:48,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:48,250 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:48,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:48,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939692, now seen corresponding path program 1 times [2019-12-07 14:15:48,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:48,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953361992] [2019-12-07 14:15:48,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:48,284 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:48,432 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-12-07 14:15:48,484 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:15:48,485 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:15:48,485 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:15:48,485 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:15:48,485 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:15:48,485 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,485 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:15:48,485 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:15:48,485 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcpy-alloca-1.i_Iteration1_Lasso [2019-12-07 14:15:48,485 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:15:48,485 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:15:48,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,513 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,614 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:48,790 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:15:48,794 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,799 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 [2019-12-07 14:15:48,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,802 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,802 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,806 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,806 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,811 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,814 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:15:48,816 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,816 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:48,816 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,816 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,816 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:48,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:48,818 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,821 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 [2019-12-07 14:15:48,823 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,823 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:48,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,824 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:48,824 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:48,825 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,828 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 [2019-12-07 14:15:48,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:48,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,829 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:48,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:48,831 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,835 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 [2019-12-07 14:15:48,836 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,836 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,836 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,836 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,838 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,839 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,842 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,845 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 [2019-12-07 14:15:48,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:48,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:48,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:48,848 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,852 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 [2019-12-07 14:15:48,853 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,853 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,853 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,853 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,855 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,855 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,858 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,862 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-12-07 14:15:48,863 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,863 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,863 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,863 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,865 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,865 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,869 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,872 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 [2019-12-07 14:15:48,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,873 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:48,873 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:48,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:48,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,879 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 [2019-12-07 14:15:48,881 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,881 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,881 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,881 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,884 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,885 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,890 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,894 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 [2019-12-07 14:15:48,895 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,895 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,897 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,897 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,900 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,904 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 [2019-12-07 14:15:48,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,914 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:48,918 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 [2019-12-07 14:15:48,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:48,920 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:48,920 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:48,920 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:48,926 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:48,926 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:48,938 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:15:48,970 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2019-12-07 14:15:48,970 INFO L444 ModelExtractionUtils]: 8 out of 28 variables were initially zero. Simplification set additionally 17 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:48,974 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:15:48,982 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-12-07 14:15:48,982 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:15:48,983 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [] [2019-12-07 14:15:49,001 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2019-12-07 14:15:49,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:15:49,040 INFO L264 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:15:49,041 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:15:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:15:49,051 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:15:49,051 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:15:49,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:15:49,073 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 [2019-12-07 14:15:49,074 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-12-07 14:15:49,110 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 36 states and 47 transitions. Complement of second has 7 states. [2019-12-07 14:15:49,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 14:15:49,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 14:15:49,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2019-12-07 14:15:49,113 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 14:15:49,114 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:15:49,114 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 14:15:49,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:15:49,115 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 14:15:49,115 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:15:49,116 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 36 states and 47 transitions. [2019-12-07 14:15:49,119 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:15:49,121 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 36 states to 11 states and 15 transitions. [2019-12-07 14:15:49,122 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-12-07 14:15:49,123 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-12-07 14:15:49,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2019-12-07 14:15:49,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:15:49,123 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-12-07 14:15:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2019-12-07 14:15:49,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 14:15:49,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 14:15:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2019-12-07 14:15:49,143 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-12-07 14:15:49,143 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2019-12-07 14:15:49,143 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 14:15:49,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2019-12-07 14:15:49,144 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:15:49,144 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:15:49,144 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:15:49,144 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:15:49,144 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:15:49,145 INFO L794 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 127#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 128#L525 assume !(main_~length1~0 < 1); 132#L525-2 assume !(main_~length2~0 < 1); 133#L528-1 assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 123#L535-3 assume !(main_~i~0 < main_~length2~0 - 1); 124#L535-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstrcpy_#in~s1.base, cstrcpy_#in~s1.offset, cstrcpy_#in~s2.base, cstrcpy_#in~s2.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstrcpy_#res.base, cstrcpy_#res.offset;havoc cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset, cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset, cstrcpy_#t~mem4, cstrcpy_~s1.base, cstrcpy_~s1.offset, cstrcpy_~s2.base, cstrcpy_~s2.offset, cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset, cstrcpy_~src~0.base, cstrcpy_~src~0.offset;cstrcpy_~s1.base, cstrcpy_~s1.offset := cstrcpy_#in~s1.base, cstrcpy_#in~s1.offset;cstrcpy_~s2.base, cstrcpy_~s2.offset := cstrcpy_#in~s2.base, cstrcpy_#in~s2.offset;cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset := cstrcpy_~s1.base, cstrcpy_~s1.offset;cstrcpy_~src~0.base, cstrcpy_~src~0.offset := cstrcpy_~s2.base, cstrcpy_~s2.offset; 129#L518-3 [2019-12-07 14:15:49,145 INFO L796 eck$LassoCheckResult]: Loop: 129#L518-3 cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset := cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset;cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset := cstrcpy_#t~post2.base, 1 + cstrcpy_#t~post2.offset;cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset := cstrcpy_~src~0.base, cstrcpy_~src~0.offset;cstrcpy_~src~0.base, cstrcpy_~src~0.offset := cstrcpy_#t~post3.base, 1 + cstrcpy_#t~post3.offset;call cstrcpy_#t~mem4 := read~int(cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset, 1);call write~int(cstrcpy_#t~mem4, cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset, 1); 130#L518-1 assume !!(0 != cstrcpy_#t~mem4);havoc cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset;havoc cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset;havoc cstrcpy_#t~mem4; 129#L518-3 [2019-12-07 14:15:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1806939634, now seen corresponding path program 1 times [2019-12-07 14:15:49,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:49,145 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748890549] [2019-12-07 14:15:49,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,178 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:49,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,179 INFO L82 PathProgramCache]: Analyzing trace with hash 2182, now seen corresponding path program 1 times [2019-12-07 14:15:49,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:49,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564627700] [2019-12-07 14:15:49,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:49,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1302201911, now seen corresponding path program 1 times [2019-12-07 14:15:49,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:49,195 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130461826] [2019-12-07 14:15:49,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:49,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:15:49,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:15:49,294 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130461826] [2019-12-07 14:15:49,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:15:49,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 14:15:49,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848299236] [2019-12-07 14:15:49,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:15:49,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 14:15:49,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:15:49,352 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. cyclomatic complexity: 6 Second operand 7 states. [2019-12-07 14:15:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:15:49,408 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2019-12-07 14:15:49,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 14:15:49,408 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-12-07 14:15:49,409 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:15:49,409 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 15 transitions. [2019-12-07 14:15:49,409 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-12-07 14:15:49,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-12-07 14:15:49,410 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-12-07 14:15:49,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:15:49,410 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-12-07 14:15:49,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-12-07 14:15:49,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-12-07 14:15:49,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 14:15:49,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2019-12-07 14:15:49,411 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 14:15:49,411 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2019-12-07 14:15:49,411 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 14:15:49,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2019-12-07 14:15:49,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 14:15:49,412 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 14:15:49,412 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 14:15:49,412 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:15:49,412 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 14:15:49,412 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 167#L-1 havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~nondet10, main_#t~post9, main_~i~0, main_#t~ret11.base, main_#t~ret11.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 168#L525 assume !(main_~length1~0 < 1); 176#L525-2 assume !(main_~length2~0 < 1); 177#L528-1 assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;main_~i~0 := 0; 169#L535-3 assume !!(main_~i~0 < main_~length2~0 - 1);call write~int(main_#t~nondet10, main_~nondetString~0.base, main_~nondetString~0.offset + main_~i~0, 1);havoc main_#t~nondet10; 170#L535-2 main_#t~post9 := main_~i~0;main_~i~0 := 1 + main_#t~post9;havoc main_#t~post9; 171#L535-3 assume !(main_~i~0 < main_~length2~0 - 1); 172#L535-4 call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstrcpy_#in~s1.base, cstrcpy_#in~s1.offset, cstrcpy_#in~s2.base, cstrcpy_#in~s2.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstrcpy_#res.base, cstrcpy_#res.offset;havoc cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset, cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset, cstrcpy_#t~mem4, cstrcpy_~s1.base, cstrcpy_~s1.offset, cstrcpy_~s2.base, cstrcpy_~s2.offset, cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset, cstrcpy_~src~0.base, cstrcpy_~src~0.offset;cstrcpy_~s1.base, cstrcpy_~s1.offset := cstrcpy_#in~s1.base, cstrcpy_#in~s1.offset;cstrcpy_~s2.base, cstrcpy_~s2.offset := cstrcpy_#in~s2.base, cstrcpy_#in~s2.offset;cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset := cstrcpy_~s1.base, cstrcpy_~s1.offset;cstrcpy_~src~0.base, cstrcpy_~src~0.offset := cstrcpy_~s2.base, cstrcpy_~s2.offset; 174#L518-3 [2019-12-07 14:15:49,412 INFO L796 eck$LassoCheckResult]: Loop: 174#L518-3 cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset := cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset;cstrcpy_~dst~0.base, cstrcpy_~dst~0.offset := cstrcpy_#t~post2.base, 1 + cstrcpy_#t~post2.offset;cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset := cstrcpy_~src~0.base, cstrcpy_~src~0.offset;cstrcpy_~src~0.base, cstrcpy_~src~0.offset := cstrcpy_#t~post3.base, 1 + cstrcpy_#t~post3.offset;call cstrcpy_#t~mem4 := read~int(cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset, 1);call write~int(cstrcpy_#t~mem4, cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset, 1); 175#L518-1 assume !!(0 != cstrcpy_#t~mem4);havoc cstrcpy_#t~post2.base, cstrcpy_#t~post2.offset;havoc cstrcpy_#t~post3.base, cstrcpy_#t~post3.offset;havoc cstrcpy_#t~mem4; 174#L518-3 [2019-12-07 14:15:49,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1302257236, now seen corresponding path program 1 times [2019-12-07 14:15:49,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:49,413 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148205846] [2019-12-07 14:15:49,413 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:49,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,432 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:49,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2182, now seen corresponding path program 2 times [2019-12-07 14:15:49,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:49,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030170785] [2019-12-07 14:15:49,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,440 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:49,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:49,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1633721881, now seen corresponding path program 1 times [2019-12-07 14:15:49,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:15:49,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402472030] [2019-12-07 14:15:49,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:15:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:15:49,466 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 14:15:49,739 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 98 [2019-12-07 14:15:49,827 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 14:15:49,828 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 14:15:49,828 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 14:15:49,828 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 14:15:49,828 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 14:15:49,828 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:49,828 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 14:15:49,828 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 14:15:49,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrcpy-alloca-1.i_Iteration3_Lasso [2019-12-07 14:15:49,828 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 14:15:49,828 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 14:15:49,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,838 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,848 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,849 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:49,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:50,013 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-12-07 14:15:50,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:50,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:50,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:50,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 14:15:50,221 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-12-07 14:15:50,464 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 14:15:50,464 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,467 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 [2019-12-07 14:15:50,468 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,468 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,468 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,468 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,469 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,469 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,469 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,474 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 [2019-12-07 14:15:50,475 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,475 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,475 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,476 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,476 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,477 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,484 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 [2019-12-07 14:15:50,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,485 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,486 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,486 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,487 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,491 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 [2019-12-07 14:15:50,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,494 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,497 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 [2019-12-07 14:15:50,498 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,499 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,499 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,499 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,499 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,499 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,499 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,500 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,504 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 [2019-12-07 14:15:50,505 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,506 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:50,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:50,509 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,512 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 [2019-12-07 14:15:50,513 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,514 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,514 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,515 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:50,515 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:50,517 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,521 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 [2019-12-07 14:15:50,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,522 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,523 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,523 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,528 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 [2019-12-07 14:15:50,529 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,529 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,529 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,529 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,530 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,535 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 [2019-12-07 14:15:50,536 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,536 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,536 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,536 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,537 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,537 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,538 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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) Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,542 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 [2019-12-07 14:15:50,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,544 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,544 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,544 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,544 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,545 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,548 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 [2019-12-07 14:15:50,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,550 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,550 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,551 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/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 [2019-12-07 14:15:50,554 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 [2019-12-07 14:15:50,555 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,555 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,555 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,556 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,556 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:50,556 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:50,559 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,563 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 [2019-12-07 14:15:50,564 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,564 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,564 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,564 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,564 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,565 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,565 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,566 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,569 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 [2019-12-07 14:15:50,570 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 14:15:50,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,571 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 14:15:50,571 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 14:15:50,572 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,576 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 [2019-12-07 14:15:50,577 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,577 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,577 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,577 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,578 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:50,578 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:50,581 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,584 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 [2019-12-07 14:15:50,586 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 14:15:50,586 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 14:15:50,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 14:15:50,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 14:15:50,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 14:15:50,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 14:15:50,611 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 14:15:50,637 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2019-12-07 14:15:50,638 INFO L444 ModelExtractionUtils]: 42 out of 55 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_545956e9-c4cb-4d0f-98e7-c6188cdc4e8b/bin/uautomizer/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 14:15:50,641 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 14:15:50,643 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-12-07 14:15:50,643 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 14:15:50,643 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2, ULTIMATE.start_cstrcpy_~dst~0.offset) = 3*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_2 - 2*ULTIMATE.start_cstrcpy_~dst~0.offset Supporting invariants [3*ULTIMATE.start_cstrcpy_~src~0.offset - 2*ULTIMATE.start_cstrcpy_~dst~0.offset >= 0] [2019-12-07 14:15:50,675 INFO L297 tatePredicateManager]: 10 out of 12 supporting invariants were superfluous and have been removed [2019-12-07 14:15:50,679 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-07 14:15:50,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:15:50,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:15:50,708 INFO L264 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 20 conjunts are in the unsatisfiable core [2019-12-07 14:15:50,709 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:15:50,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:15:50,729 INFO L264 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 16 conjunts are in the unsatisfiable core [2019-12-07 14:15:50,729 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:15:50,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:15:50,749 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 [2019-12-07 14:15:50,749 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-12-07 14:15:50,771 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 5 states. [2019-12-07 14:15:50,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 14:15:50,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 14:15:50,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2019-12-07 14:15:50,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2019-12-07 14:15:50,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:15:50,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2019-12-07 14:15:50,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:15:50,772 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2019-12-07 14:15:50,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 14:15:50,772 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2019-12-07 14:15:50,773 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:15:50,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2019-12-07 14:15:50,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 14:15:50,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 14:15:50,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 14:15:50,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 14:15:50,773 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:15:50,773 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:15:50,773 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:15:50,773 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 14:15:50,773 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:15:50,774 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 14:15:50,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 14:15:50,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 02:15:50 BoogieIcfgContainer [2019-12-07 14:15:50,778 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 14:15:50,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:15:50,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:15:50,778 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:15:50,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:15:48" (3/4) ... [2019-12-07 14:15:50,781 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 14:15:50,781 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:15:50,783 INFO L168 Benchmark]: Toolchain (without parser) took 3264.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 938.1 MB in the beginning and 951.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 141.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:15:50,783 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:15:50,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:15:50,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:15:50,785 INFO L168 Benchmark]: Boogie Preprocessor took 17.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:15:50,785 INFO L168 Benchmark]: RCFGBuilder took 188.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:15:50,786 INFO L168 Benchmark]: BuchiAutomizer took 2714.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 957.1 MB in the end (delta: 103.4 MB). Peak memory consumption was 153.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:15:50,787 INFO L168 Benchmark]: Witness Printer took 3.44 ms. Allocated memory is still 1.2 GB. Free memory was 957.1 MB in the beginning and 951.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:15:50,790 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 958.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 308.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 938.1 MB in the beginning and 1.1 GB in the end (delta: -149.6 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.23 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 188.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2714.31 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 50.3 MB). Free memory was 1.1 GB in the beginning and 957.1 MB in the end (delta: 103.4 MB). Peak memory consumption was 153.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.44 ms. Allocated memory is still 1.2 GB. Free memory was 957.1 MB in the beginning and 951.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 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 -1 * i + length2 and consists of 5 locations. One deterministic module has affine ranking function 3 * unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] + -2 * dst and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 34 SDtfs, 42 SDslu, 40 SDs, 0 SdLazy, 46 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital170 mio100 ax111 hnf98 lsp84 ukn81 mio100 lsp55 div100 bol100 ite100 ukn100 eq180 hnf89 smp99 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 2 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...