./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 41c98898a531fb0ee2da225b716afd5dc80c24b1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 09:42:31,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:42:31,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:42:31,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:42:31,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:42:31,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:42:31,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:42:31,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:42:31,919 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:42:31,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:42:31,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:42:31,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:42:31,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:42:31,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:42:31,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:42:31,929 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:42:31,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:42:31,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:42:31,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:42:31,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:42:31,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:42:31,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:42:31,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:42:31,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:42:31,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:42:31,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:42:31,949 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:42:31,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:42:31,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:42:31,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:42:31,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:42:31,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:42:31,952 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:42:31,952 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:42:31,953 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:42:31,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:42:31,954 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:42:31,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:42:31,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:42:31,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:42:31,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:42:31,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 09:42:31,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:42:31,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:42:31,985 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:42:31,985 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:42:31,985 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:42:31,985 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 09:42:31,986 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 09:42:31,986 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 09:42:31,986 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 09:42:31,986 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 09:42:31,986 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 09:42:31,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:42:31,987 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 09:42:31,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:42:31,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:42:31,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 09:42:31,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 09:42:31,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 09:42:31,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:42:31,988 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 09:42:31,988 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:42:31,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 09:42:31,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:42:31,989 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:42:31,989 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 09:42:31,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:42:31,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:42:31,990 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 09:42:31,991 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 09:42:31,991 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_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 41c98898a531fb0ee2da225b716afd5dc80c24b1 [2019-11-20 09:42:32,165 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:42:32,175 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:42:32,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:42:32,181 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:42:32,182 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:42:32,183 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2019-11-20 09:42:32,235 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/data/4e857c4b1/0543af67f98740258d67c553ff03bae5/FLAG696361999 [2019-11-20 09:42:32,633 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:42:32,633 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/sv-benchmarks/c/termination-memory-alloca/openbsd_cmemchr-alloca-1.i [2019-11-20 09:42:32,643 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/data/4e857c4b1/0543af67f98740258d67c553ff03bae5/FLAG696361999 [2019-11-20 09:42:32,974 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/bin/uautomizer/data/4e857c4b1/0543af67f98740258d67c553ff03bae5 [2019-11-20 09:42:32,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:42:32,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:42:32,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:42:32,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:42:32,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:42:32,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:42:32" (1/1) ... [2019-11-20 09:42:32,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544d92ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:32, skipping insertion in model container [2019-11-20 09:42:32,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:42:32" (1/1) ... [2019-11-20 09:42:32,994 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:42:33,046 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:42:33,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:42:33,436 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:42:33,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:42:33,528 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:42:33,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33 WrapperNode [2019-11-20 09:42:33,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:42:33,529 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:42:33,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:42:33,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:42:33,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:42:33,574 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:42:33,574 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:42:33,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:42:33,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,584 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... [2019-11-20 09:42:33,596 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:42:33,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:42:33,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:42:33,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:42:33,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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 [2019-11-20 09:42:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 09:42:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:42:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:42:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:42:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:42:33,918 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:42:33,918 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 09:42:33,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:33 BoogieIcfgContainer [2019-11-20 09:42:33,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:42:33,919 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 09:42:33,919 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 09:42:33,922 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 09:42:33,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 09:42:33,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 09:42:32" (1/3) ... [2019-11-20 09:42:33,923 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2214341f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:42:33, skipping insertion in model container [2019-11-20 09:42:33,923 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 09:42:33,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:42:33" (2/3) ... [2019-11-20 09:42:33,924 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2214341f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 09:42:33, skipping insertion in model container [2019-11-20 09:42:33,924 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 09:42:33,924 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:33" (3/3) ... [2019-11-20 09:42:33,925 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cmemchr-alloca-1.i [2019-11-20 09:42:33,959 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 09:42:33,960 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 09:42:33,960 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 09:42:33,960 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:42:33,960 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:42:33,960 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 09:42:33,960 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:42:33,961 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 09:42:33,973 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-20 09:42:33,990 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 09:42:33,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:42:33,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:42:33,995 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 09:42:33,995 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 09:42:33,995 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 09:42:33,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-20 09:42:33,997 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 09:42:33,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 09:42:33,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 09:42:33,998 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 09:42:33,998 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-20 09:42:34,003 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length~0, main_~n~0, main_~c~0, main_~nondetArea~0.base, main_~nondetArea~0.offset;main_~length~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~n~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~c~0 := main_#t~nondet7;havoc main_#t~nondet7; 9#L563true assume !(main_~length~0 < 1); 12#L563-2true assume !(main_~n~0 < 1); 5#L566-1true call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~n~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;cmemchr_#in~s.base, cmemchr_#in~s.offset, cmemchr_#in~c, cmemchr_#in~n := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~c~0, main_~n~0;havoc cmemchr_#res.base, cmemchr_#res.offset;havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset, cmemchr_#t~mem4, cmemchr_#t~pre2, cmemchr_~p~0.base, cmemchr_~p~0.offset, cmemchr_~s.base, cmemchr_~s.offset, cmemchr_~c, cmemchr_~n;cmemchr_~s.base, cmemchr_~s.offset := cmemchr_#in~s.base, cmemchr_#in~s.offset;cmemchr_~c := cmemchr_#in~c;cmemchr_~n := cmemchr_#in~n; 13#L550true assume 0 != cmemchr_~n % 4294967296;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_~s.base, cmemchr_~s.offset; 3#L552-4true [2019-11-20 09:42:34,004 INFO L796 eck$LassoCheckResult]: Loop: 3#L552-4true cmemchr_#t~post3.base, cmemchr_#t~post3.offset := cmemchr_~p~0.base, cmemchr_~p~0.offset;cmemchr_~p~0.base, cmemchr_~p~0.offset := cmemchr_#t~post3.base, 1 + cmemchr_#t~post3.offset;call cmemchr_#t~mem4 := read~int(cmemchr_#t~post3.base, cmemchr_#t~post3.offset, 1); 7#L553true assume !(cmemchr_#t~mem4 % 256 == cmemchr_~c % 256);havoc cmemchr_#t~post3.base, cmemchr_#t~post3.offset;havoc cmemchr_#t~mem4; 10#L552-1true cmemchr_#t~pre2 := cmemchr_~n - 1;cmemchr_~n := cmemchr_~n - 1; 14#L552-2true assume !!(0 != cmemchr_#t~pre2 % 4294967296);havoc cmemchr_#t~pre2; 3#L552-4true [2019-11-20 09:42:34,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:34,008 INFO L82 PathProgramCache]: Analyzing trace with hash 889572236, now seen corresponding path program 1 times [2019-11-20 09:42:34,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:42:34,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378783609] [2019-11-20 09:42:34,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:42:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:34,144 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:42:34,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:34,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1605803, now seen corresponding path program 1 times [2019-11-20 09:42:34,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:42:34,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445838689] [2019-11-20 09:42:34,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:42:34,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:34,177 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:42:34,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:34,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1592233654, now seen corresponding path program 1 times [2019-11-20 09:42:34,178 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:42:34,179 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664188065] [2019-11-20 09:42:34,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:42:34,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:34,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:42:34,232 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:42:34,559 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-11-20 09:42:34,661 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 09:42:34,661 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 09:42:34,662 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 09:42:34,662 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 09:42:34,662 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 09:42:34,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:34,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 09:42:34,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 09:42:34,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cmemchr-alloca-1.i_Iteration1_Lasso [2019-11-20 09:42:34,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 09:42:34,664 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 09:42:34,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,906 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-11-20 09:42:34,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:34,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:35,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:35,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:35,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:35,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 09:42:35,313 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-11-20 09:42:35,594 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 28 [2019-11-20 09:42:35,791 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 09:42:35,795 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,811 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 [2019-11-20 09:42:35,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,822 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,823 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,823 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,823 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,825 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,826 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:35,829 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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 [2019-11-20 09:42:35,842 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 [2019-11-20 09:42:35,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,845 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,845 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 09:42:35,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,868 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 [2019-11-20 09:42:35,869 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,870 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,870 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,870 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,870 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:35,876 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,890 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 [2019-11-20 09:42:35,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,892 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,895 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:35,897 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,912 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 [2019-11-20 09:42:35,914 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,914 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,914 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,914 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,914 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,917 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,917 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:35,919 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,933 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 [2019-11-20 09:42:35,934 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,934 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,934 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,935 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,935 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,936 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:35,938 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,952 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 [2019-11-20 09:42:35,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:35,957 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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 [2019-11-20 09:42:35,976 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 [2019-11-20 09:42:35,978 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:35,978 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 09:42:35,978 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:35,978 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:35,979 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:35,980 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 09:42:35,980 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 09:42:35,982 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:35,999 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 09:42:36,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:36,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:36,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 09:42:36,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,011 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:36,027 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 [2019-11-20 09:42:36,028 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:36,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:36,034 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 09:42:36,035 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,038 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:36,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 09:42:36,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,046 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,046 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:36,046 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:36,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 09:42:36,051 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,062 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:36,071 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 [2019-11-20 09:42:36,074 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,075 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 09:42:36,075 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,098 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-20 09:42:36,098 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-20 09:42:36,126 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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 [2019-11-20 09:42:36,142 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 [2019-11-20 09:42:36,144 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,145 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,145 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:36,145 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:36,152 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 09:42:36,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 09:42:36,165 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:36,181 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 [2019-11-20 09:42:36,183 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,183 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:36,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:36,193 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 09:42:36,193 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,200 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:36,215 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 [2019-11-20 09:42:36,218 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 09:42:36,218 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 09:42:36,218 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 09:42:36,218 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 09:42:36,233 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 09:42:36,233 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,259 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 09:42:36,371 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2019-11-20 09:42:36,372 INFO L444 ModelExtractionUtils]: 11 out of 34 variables were initially zero. Simplification set additionally 20 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_97130734-0db2-4ba1-ae4f-f1b0955d2876/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) [2019-11-20 09:42:36,386 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 09:42:36,390 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-20 09:42:36,394 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 09:42:36,394 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1, ULTIMATE.start_cmemchr_~p~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc8.base)_1 - 1*ULTIMATE.start_cmemchr_~p~0.offset Supporting invariants [] [2019-11-20 09:42:36,416 INFO L297 tatePredicateManager]: 2 out of 3 supporting invariants were superfluous and have been removed [2019-11-20 09:42:36,425 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-20 09:42:36,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:42:36,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:36,490 INFO L255 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-20 09:42:36,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:42:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:42:36,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-20 09:42:36,534 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 09:42:36,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:42:36,590 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 [2019-11-20 09:42:36,591 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2019-11-20 09:42:36,666 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 32 states and 37 transitions. Complement of second has 7 states. [2019-11-20 09:42:36,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 09:42:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 09:42:36,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2019-11-20 09:42:36,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 09:42:36,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 09:42:36,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 10 letters. Loop has 4 letters. [2019-11-20 09:42:36,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 09:42:36,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 8 letters. [2019-11-20 09:42:36,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 09:42:36,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2019-11-20 09:42:36,685 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 09:42:36,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-20 09:42:36,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 09:42:36,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 09:42:36,696 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 09:42:36,696 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 09:42:36,696 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:42:36,696 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:42:36,696 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 09:42:36,696 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 09:42:36,697 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 09:42:36,697 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 09:42:36,697 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 09:42:36,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 09:42:36 BoogieIcfgContainer [2019-11-20 09:42:36,703 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 09:42:36,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:42:36,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:42:36,704 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:42:36,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:42:33" (3/4) ... [2019-11-20 09:42:36,707 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 09:42:36,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:42:36,709 INFO L168 Benchmark]: Toolchain (without parser) took 3730.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -85.8 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:36,710 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:36,711 INFO L168 Benchmark]: CACSL2BoogieTranslator took 548.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:36,711 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:36,712 INFO L168 Benchmark]: Boogie Preprocessor took 21.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:36,718 INFO L168 Benchmark]: RCFGBuilder took 322.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:36,719 INFO L168 Benchmark]: BuchiAutomizer took 2783.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:42:36,719 INFO L168 Benchmark]: Witness Printer took 4.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:42:36,724 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 548.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.66 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 322.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2783.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 76.1 MB). Peak memory consumption was 76.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.28 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function unknown-#length-unknown[__builtin_alloca (n * sizeof(char))] + -1 * p and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 16 SDslu, 12 SDs, 0 SdLazy, 10 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital138 mio100 ax113 hnf98 lsp82 ukn99 mio100 lsp55 div208 bol100 ite100 ukn100 eq168 hnf64 smp91 dnf100 smp100 tf100 neg98 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 3 VariablesLoop: 6 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 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...