./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-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_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 76da3a81dee1d435f94d1997f88b6b1f891a43a1 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:19:45,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 10:19:45,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 10:19:45,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 10:19:45,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 10:19:45,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 10:19:45,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 10:19:45,857 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 10:19:45,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 10:19:45,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 10:19:45,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 10:19:45,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 10:19:45,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 10:19:45,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 10:19:45,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 10:19:45,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 10:19:45,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 10:19:45,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 10:19:45,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 10:19:45,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 10:19:45,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 10:19:45,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 10:19:45,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 10:19:45,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 10:19:45,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 10:19:45,877 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 10:19:45,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 10:19:45,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 10:19:45,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 10:19:45,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 10:19:45,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 10:19:45,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 10:19:45,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 10:19:45,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 10:19:45,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 10:19:45,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 10:19:45,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 10:19:45,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 10:19:45,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 10:19:45,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 10:19:45,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 10:19:45,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 10:19:45,907 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 10:19:45,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 10:19:45,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 10:19:45,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 10:19:45,908 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 10:19:45,909 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 10:19:45,909 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 10:19:45,909 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 10:19:45,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 10:19:45,909 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 10:19:45,909 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 10:19:45,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 10:19:45,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 10:19:45,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 10:19:45,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 10:19:45,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 10:19:45,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 10:19:45,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 10:19:45,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 10:19:45,911 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 10:19:45,911 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 10:19:45,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 10:19:45,911 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 10:19:45,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 10:19:45,912 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 10:19:45,912 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 10:19:45,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 10:19:45,912 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 10:19:45,913 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 10:19:45,913 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_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 -> 76da3a81dee1d435f94d1997f88b6b1f891a43a1 [2019-11-20 10:19:46,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 10:19:46,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 10:19:46,113 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 10:19:46,115 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 10:19:46,115 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 10:19:46,116 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2019-11-20 10:19:46,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/data/14ca1c8de/bca3058d56e3492384ff856f8cfb5439/FLAGf5894ee18 [2019-11-20 10:19:46,589 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 10:19:46,589 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcat-alloca-1.i [2019-11-20 10:19:46,601 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/data/14ca1c8de/bca3058d56e3492384ff856f8cfb5439/FLAGf5894ee18 [2019-11-20 10:19:46,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/data/14ca1c8de/bca3058d56e3492384ff856f8cfb5439 [2019-11-20 10:19:46,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 10:19:46,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 10:19:46,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:46,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 10:19:46,897 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 10:19:46,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:46" (1/1) ... [2019-11-20 10:19:46,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb910e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:46, skipping insertion in model container [2019-11-20 10:19:46,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:19:46" (1/1) ... [2019-11-20 10:19:46,908 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 10:19:46,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 10:19:47,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:47,267 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 10:19:47,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 10:19:47,355 INFO L192 MainTranslator]: Completed translation [2019-11-20 10:19:47,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47 WrapperNode [2019-11-20 10:19:47,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 10:19:47,356 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:47,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 10:19:47,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 10:19:47,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 10:19:47,398 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 10:19:47,399 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 10:19:47,399 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 10:19:47,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... [2019-11-20 10:19:47,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 10:19:47,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 10:19:47,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 10:19:47,429 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 10:19:47,430 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 10:19:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 10:19:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 10:19:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 10:19:47,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 10:19:47,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 10:19:47,763 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 10:19:47,764 INFO L285 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-20 10:19:47,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:47 BoogieIcfgContainer [2019-11-20 10:19:47,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 10:19:47,765 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 10:19:47,766 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 10:19:47,768 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 10:19:47,769 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:19:47,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 10:19:46" (1/3) ... [2019-11-20 10:19:47,771 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4724680d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:19:47, skipping insertion in model container [2019-11-20 10:19:47,771 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:19:47,771 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:19:47" (2/3) ... [2019-11-20 10:19:47,772 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4724680d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 10:19:47, skipping insertion in model container [2019-11-20 10:19:47,772 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 10:19:47,772 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:47" (3/3) ... [2019-11-20 10:19:47,773 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcat-alloca-1.i [2019-11-20 10:19:47,825 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 10:19:47,825 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 10:19:47,825 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 10:19:47,825 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 10:19:47,825 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 10:19:47,825 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 10:19:47,826 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 10:19:47,826 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 10:19:47,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 10:19:47,858 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 10:19:47,858 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:19:47,858 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:19:47,864 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:19:47,864 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:19:47,865 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 10:19:47,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2019-11-20 10:19:47,866 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-11-20 10:19:47,866 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 10:19:47,866 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 10:19:47,867 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-20 10:19:47,867 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 10:19:47,874 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 6#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~malloc10.base, main_#t~malloc10.offset, main_#t~malloc11.base, main_#t~malloc11.offset, main_#t~ret12.base, main_#t~ret12.offset, main_~length1~0, main_~length2~0, main_~length3~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~length2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~length3~0 := main_#t~nondet9;havoc main_#t~nondet9; 18#L559true assume !(main_~length1~0 < 1); 5#L559-2true assume !(main_~length2~0 < 2); 13#L562-1true assume !(main_~length3~0 < 1); 7#L565-1true assume !(main_~length2~0 - main_~length3~0 < main_~length1~0 || main_~length3~0 > main_~length2~0);call main_#t~malloc10.base, main_#t~malloc10.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc10.base, main_#t~malloc10.offset;call main_#t~malloc11.base, main_#t~malloc11.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc11.base, main_#t~malloc11.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length3~0 - 1), 1);cstrcat_#in~s.base, cstrcat_#in~s.offset, cstrcat_#in~append.base, cstrcat_#in~append.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrcat_#res.base, cstrcat_#res.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset, cstrcat_#t~mem3, cstrcat_#t~post4.base, cstrcat_#t~post4.offset, cstrcat_#t~post5.base, cstrcat_#t~post5.offset, cstrcat_#t~mem6, cstrcat_~s.base, cstrcat_~s.offset, cstrcat_~append.base, cstrcat_~append.offset, cstrcat_~save~0.base, cstrcat_~save~0.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_#in~s.base, cstrcat_#in~s.offset;cstrcat_~append.base, cstrcat_~append.offset := cstrcat_#in~append.base, cstrcat_#in~append.offset;cstrcat_~save~0.base, cstrcat_~save~0.offset := cstrcat_~s.base, cstrcat_~s.offset; 4#L551-4true [2019-11-20 10:19:47,875 INFO L796 eck$LassoCheckResult]: Loop: 4#L551-4true call cstrcat_#t~mem3 := read~int(cstrcat_~s.base, cstrcat_~s.offset, 1); 14#L551-1true assume !!(0 != cstrcat_#t~mem3);havoc cstrcat_#t~mem3; 3#L551-3true cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;cstrcat_~s.base, cstrcat_~s.offset := cstrcat_~s.base, 1 + cstrcat_~s.offset;havoc cstrcat_#t~pre2.base, cstrcat_#t~pre2.offset; 4#L551-4true [2019-11-20 10:19:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:47,880 INFO L82 PathProgramCache]: Analyzing trace with hash 889572367, now seen corresponding path program 1 times [2019-11-20 10:19:47,888 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:47,889 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123102465] [2019-11-20 10:19:47,889 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:48,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:48,038 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:19:48,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:48,039 INFO L82 PathProgramCache]: Analyzing trace with hash 58750, now seen corresponding path program 1 times [2019-11-20 10:19:48,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:48,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406458995] [2019-11-20 10:19:48,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:48,053 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:19:48,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:48,054 INFO L82 PathProgramCache]: Analyzing trace with hash 1302197936, now seen corresponding path program 1 times [2019-11-20 10:19:48,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 10:19:48,055 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137137680] [2019-11-20 10:19:48,055 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 10:19:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 10:19:48,107 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 10:19:48,713 WARN L191 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 90 [2019-11-20 10:19:48,883 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-11-20 10:19:48,896 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 10:19:48,897 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 10:19:48,897 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 10:19:48,897 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 10:19:48,897 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 10:19:48,897 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:19:48,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 10:19:48,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 10:19:48,898 INFO L133 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcat-alloca-1.i_Iteration1_Lasso [2019-11-20 10:19:48,898 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 10:19:48,898 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 10:19:48,938 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 10:19:48,944 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 10:19:48,947 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 10:19:48,950 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 10:19:48,954 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 10:19:48,960 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 10:19:48,962 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 10:19:48,966 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 10:19:48,973 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 10:19:48,977 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 10:19:48,981 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 10:19:48,983 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 10:19:48,986 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 10:19:49,316 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-11-20 10:19:49,394 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 10:19:49,397 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 10:19:49,400 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 10:19:49,403 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 10:19:49,408 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 10:19:49,412 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 10:19:49,415 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 10:19:49,419 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 10:19:49,422 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 10:19:50,008 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 10:19:50,019 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,027 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 10:19:50,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,030 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,030 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,030 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,031 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,034 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,034 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 10:19:50,037 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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) [2019-11-20 10:19:50,052 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 10:19:50,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,055 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,055 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:19:50,060 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/bin/uautomizer/z3 Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 10:19:50,074 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 10:19:50,077 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,077 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,077 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,077 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,077 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,080 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,080 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 10:19:50,083 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,094 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 10:19:50,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,097 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,101 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 10:19:50,103 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,126 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 10:19:50,128 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,128 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,129 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,129 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,135 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:19:50,135 INFO L402 nArgumentSynthesizer]: A total of 2 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 10:19:50,142 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,157 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 10:19:50,159 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,159 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,159 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,160 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,161 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 10:19:50,164 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,179 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 10:19:50,182 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,182 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,183 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,183 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,189 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:19:50,190 INFO L402 nArgumentSynthesizer]: A total of 2 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 10:19:50,195 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,225 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 10:19:50,227 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,228 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,228 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,228 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,228 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,230 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,230 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:19:50,233 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 [2019-11-20 10:19:50,247 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 10:19:50,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,250 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,250 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,250 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,251 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,251 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:19:50,252 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,267 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 10:19:50,268 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,269 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,269 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,269 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,274 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:19:50,274 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:19:50,280 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 [2019-11-20 10:19:50,298 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 10:19:50,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 10:19:50,303 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,315 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 10:19:50,316 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,316 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 10:19:50,317 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,317 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,317 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 10:19:50,319 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 10:19:50,319 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:19:50,325 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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) [2019-11-20 10:19:50,343 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 10:19:50,344 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,344 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,345 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,345 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:19:50,350 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:19:50,350 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:19:50,356 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,370 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 10:19:50,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 10:19:50,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 10:19:50,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 10:19:50,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:19:50,396 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 10:19:50,396 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 10:19:50,413 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 10:19:50,603 INFO L443 ModelExtractionUtils]: Simplification made 19 calls to the SMT solver. [2019-11-20 10:19:50,603 INFO L444 ModelExtractionUtils]: 14 out of 49 variables were initially zero. Simplification set additionally 30 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_eca3ef0c-6127-4e36-a29a-24a31fa40dcb/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 10:19:50,618 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 10:19:50,621 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-20 10:19:50,621 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 10:19:50,622 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcat_~s.offset, ULTIMATE.start_main_~length2~0) = -1*ULTIMATE.start_cstrcat_~s.offset + 1*ULTIMATE.start_main_~length2~0 Supporting invariants [-1*v_rep(select #length ULTIMATE.start_main_#t~malloc11.base)_1 + 1*ULTIMATE.start_main_~length2~0 >= 0] [2019-11-20 10:19:50,675 INFO L297 tatePredicateManager]: 8 out of 10 supporting invariants were superfluous and have been removed [2019-11-20 10:19:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 10:19:50,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:50,771 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 10:19:50,773 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:19:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 10:19:50,790 WARN L253 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-20 10:19:50,790 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 10:19:50,819 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 10:19:50,833 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 [2019-11-20 10:19:50,834 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2019-11-20 10:19:50,919 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 34 states and 44 transitions. Complement of second has 8 states. [2019-11-20 10:19:50,920 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 [2019-11-20 10:19:50,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 10:19:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2019-11-20 10:19:50,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 3 letters. [2019-11-20 10:19:50,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:19:50,925 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 3 letters. [2019-11-20 10:19:50,925 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:19:50,926 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 6 letters. Loop has 6 letters. [2019-11-20 10:19:50,926 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 10:19:50,927 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2019-11-20 10:19:50,930 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:19:50,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2019-11-20 10:19:50,934 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 10:19:50,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 10:19:50,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 10:19:50,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 10:19:50,935 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:19:50,935 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:19:50,935 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 10:19:50,935 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 10:19:50,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 10:19:50,936 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 10:19:50,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 10:19:50,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 10:19:50 BoogieIcfgContainer [2019-11-20 10:19:50,941 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 10:19:50,943 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 10:19:50,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 10:19:50,944 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 10:19:50,944 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:19:47" (3/4) ... [2019-11-20 10:19:50,948 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 10:19:50,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 10:19:50,950 INFO L168 Benchmark]: Toolchain (without parser) took 4057.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -170.2 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:50,951 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 10:19:50,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:50,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.97 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:50,954 INFO L168 Benchmark]: Boogie Preprocessor took 30.56 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 10:19:50,960 INFO L168 Benchmark]: RCFGBuilder took 335.72 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: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:50,961 INFO L168 Benchmark]: BuchiAutomizer took 3176.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.6 MB). Peak memory consumption was 42.0 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:50,961 INFO L168 Benchmark]: Witness Printer took 5.28 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: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2019-11-20 10:19:50,969 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 461.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.97 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.56 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 335.72 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: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3176.03 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -34.6 MB). Peak memory consumption was 42.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.28 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: 7.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + length2 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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: 17 SDtfs, 16 SDslu, 8 SDs, 0 SdLazy, 8 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital187 mio100 ax109 hnf99 lsp88 ukn78 mio100 lsp50 div100 bol100 ite100 ukn100 eq188 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...