./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/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 86041c6ad59cce2f98747ca89872b3c90a73ab21 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:42:52,455 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:42:52,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:42:52,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:42:52,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:42:52,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:42:52,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:42:52,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:42:52,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:42:52,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:42:52,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:42:52,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:42:52,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:42:52,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:42:52,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:42:52,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:42:52,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:42:52,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:42:52,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:42:52,529 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:42:52,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:42:52,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:42:52,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:42:52,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:42:52,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:42:52,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:42:52,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:42:52,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:42:52,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:42:52,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:42:52,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:42:52,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:42:52,553 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:42:52,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:42:52,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:42:52,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:42:52,557 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:42:52,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:42:52,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:42:52,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:42:52,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:42:52,560 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 21:42:52,594 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:42:52,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:42:52,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:42:52,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:42:52,609 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:42:52,610 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:42:52,610 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:42:52,610 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:42:52,611 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:42:52,611 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:42:52,611 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:42:52,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:42:52,612 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:42:52,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:42:52,613 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:42:52,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:42:52,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:42:52,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:42:52,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:42:52,614 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:42:52,614 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:42:52,615 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:42:52,615 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:42:52,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:42:52,616 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:42:52,616 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:42:52,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:42:52,617 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:42:52,619 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:42:52,619 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_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/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 -> 86041c6ad59cce2f98747ca89872b3c90a73ab21 [2019-11-15 21:42:52,651 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:42:52,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:42:52,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:42:52,670 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:42:52,671 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:42:52,672 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i [2019-11-15 21:42:52,742 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/data/fe9cfb971/054520b1ad4a4ca59161195a8dcd02e6/FLAG7745920f9 [2019-11-15 21:42:53,332 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:42:53,335 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrcpy-alloca-1.i [2019-11-15 21:42:53,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/data/fe9cfb971/054520b1ad4a4ca59161195a8dcd02e6/FLAG7745920f9 [2019-11-15 21:42:53,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/bin/uautomizer/data/fe9cfb971/054520b1ad4a4ca59161195a8dcd02e6 [2019-11-15 21:42:53,630 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:42:53,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:42:53,633 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:42:53,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:42:53,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:42:53,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:42:53" (1/1) ... [2019-11-15 21:42:53,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c02b67e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:53, skipping insertion in model container [2019-11-15 21:42:53,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:42:53" (1/1) ... [2019-11-15 21:42:53,651 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:42:53,701 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:42:54,126 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:42:54,137 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:42:54,183 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:42:54,244 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:42:54,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54 WrapperNode [2019-11-15 21:42:54,245 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:42:54,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:42:54,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:42:54,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:42:54,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:42:54,295 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:42:54,295 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:42:54,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:42:54,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... [2019-11-15 21:42:54,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:42:54,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:42:54,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:42:54,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:42:54,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_10aa79c1-2b37-47d1-a566-cd1d5b99a5bf/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 [2019-11-15 21:42:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:42:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:42:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:42:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:42:54,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:42:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:42:54,818 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:42:54,819 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 21:42:54,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:42:54 BoogieIcfgContainer [2019-11-15 21:42:54,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:42:54,820 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:42:54,821 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:42:54,823 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:42:54,824 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:42:54,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:42:53" (1/3) ... [2019-11-15 21:42:54,826 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52d6f832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:42:54, skipping insertion in model container [2019-11-15 21:42:54,826 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:42:54,826 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:42:54" (2/3) ... [2019-11-15 21:42:54,826 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@52d6f832 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:42:54, skipping insertion in model container [2019-11-15 21:42:54,827 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:42:54,827 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:42:54" (3/3) ... [2019-11-15 21:42:54,829 INFO L371 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrcpy-alloca-1.i [2019-11-15 21:42:54,883 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:42:54,884 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:42:54,884 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:42:54,884 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:42:54,884 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:42:54,885 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:42:54,885 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:42:54,885 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:42:54,901 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-11-15 21:42:54,925 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 21:42:54,926 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:42:54,926 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:42:54,932 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 21:42:54,932 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:42:54,932 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:42:54,933 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states. [2019-11-15 21:42:54,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 21:42:54,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:42:54,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:42:54,935 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 21:42:54,935 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:42:54,944 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 9#L-1true havoc main_#res;havoc main_#t~nondet5, main_#t~nondet6, main_#t~malloc7.base, main_#t~malloc7.offset, main_#t~malloc8.base, main_#t~malloc8.offset, main_#t~ret9.base, main_#t~ret9.offset, main_~length1~0, main_~length2~0, main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length1~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~length2~0 := main_#t~nondet6;havoc main_#t~nondet6; 6#L557true assume !(main_~length1~0 < 1); 8#L557-2true assume !(main_~length2~0 < 1); 15#L560-1true assume !(main_~length1~0 < main_~length2~0);call main_#t~malloc7.base, main_#t~malloc7.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetArea~0.base, main_~nondetArea~0.offset := main_#t~malloc7.base, main_#t~malloc7.offset;call main_#t~malloc8.base, main_#t~malloc8.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc8.base, main_#t~malloc8.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length2~0 - 1), 1);cstrcpy_#in~to.base, cstrcpy_#in~to.offset, cstrcpy_#in~from.base, cstrcpy_#in~from.offset := main_~nondetArea~0.base, main_~nondetArea~0.offset, main_~nondetString~0.base, main_~nondetString~0.offset;havoc cstrcpy_#res.base, cstrcpy_#res.offset;havoc cstrcpy_#t~pre2.base, cstrcpy_#t~pre2.offset, cstrcpy_#t~pre3.base, cstrcpy_#t~pre3.offset, cstrcpy_#t~mem4, cstrcpy_~to.base, cstrcpy_~to.offset, cstrcpy_~from.base, cstrcpy_~from.offset, cstrcpy_~save~0.base, cstrcpy_~save~0.offset;cstrcpy_~to.base, cstrcpy_~to.offset := cstrcpy_#in~to.base, cstrcpy_#in~to.offset;cstrcpy_~from.base, cstrcpy_~from.offset := cstrcpy_#in~from.base, cstrcpy_#in~from.offset;cstrcpy_~save~0.base, cstrcpy_~save~0.offset := cstrcpy_~to.base, cstrcpy_~to.offset; 4#L551-4true [2019-11-15 21:42:54,944 INFO L793 eck$LassoCheckResult]: Loop: 4#L551-4true call cstrcpy_#t~mem4 := read~int(cstrcpy_~from.base, cstrcpy_~from.offset, 1);call write~int(cstrcpy_#t~mem4, cstrcpy_~to.base, cstrcpy_~to.offset, 1); 13#L551-1true assume !!(0 != cstrcpy_#t~mem4);havoc cstrcpy_#t~mem4; 3#L551-3true cstrcpy_#t~pre2.base, cstrcpy_#t~pre2.offset := cstrcpy_~from.base, 1 + cstrcpy_~from.offset;cstrcpy_~from.base, cstrcpy_~from.offset := cstrcpy_~from.base, 1 + cstrcpy_~from.offset;havoc cstrcpy_#t~pre2.base, cstrcpy_#t~pre2.offset;cstrcpy_#t~pre3.base, cstrcpy_#t~pre3.offset := cstrcpy_~to.base, 1 + cstrcpy_~to.offset;cstrcpy_~to.base, cstrcpy_~to.offset := cstrcpy_~to.base, 1 + cstrcpy_~to.offset;havoc cstrcpy_#t~pre3.base, cstrcpy_#t~pre3.offset; 4#L551-4true [2019-11-15 21:42:54,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:42:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash 28695882, now seen corresponding path program 1 times [2019-11-15 21:42:54,959 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:42:54,960 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840064915] [2019-11-15 21:42:54,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:42:54,960 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:42:54,960 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:42:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:42:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:42:55,137 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:42:55,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:42:55,138 INFO L82 PathProgramCache]: Analyzing trace with hash 52792, now seen corresponding path program 1 times [2019-11-15 21:42:55,139 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:42:55,139 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455269008] [2019-11-15 21:42:55,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:42:55,139 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:42:55,139 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:42:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:42:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:42:55,163 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:42:55,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:42:55,165 INFO L82 PathProgramCache]: Analyzing trace with hash 180551759, now seen corresponding path program 1 times [2019-11-15 21:42:55,165 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:42:55,165 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898061927] [2019-11-15 21:42:55,165 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:42:55,166 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:42:55,166 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:42:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:42:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:42:55,238 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:42:55,986 WARN L191 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-11-15 21:42:56,158 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-11-15 21:42:56,174 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:42:56,175 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:42:56,176 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:42:56,176 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:42:56,177 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:42:56,177 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:42:56,177 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:42:56,177 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:42:56,178 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrcpy-alloca-1.i_Iteration1_Lasso [2019-11-15 21:42:56,178 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:42:56,178 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:42:56,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,660 WARN L191 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-11-15 21:42:56,886 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-11-15 21:42:56,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,890 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,896 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,907 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,927 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,930 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,935 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:56,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:42:57,286 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-11-15 21:42:57,973 WARN L191 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-11-15 21:42:58,205 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:42:58,214 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:42:58,216 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 [2019-11-15 21:42:58,218 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,219 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:42:58,220 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,220 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,220 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,223 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:42:58,223 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:42:58,225 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,226 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 [2019-11-15 21:42:58,227 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,227 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,227 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,228 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,231 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:42:58,232 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,240 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,241 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 [2019-11-15 21:42:58,242 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,242 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:42:58,242 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,243 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,243 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,244 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:42:58,244 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:42:58,245 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,246 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 [2019-11-15 21:42:58,247 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,260 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,260 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,261 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,266 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:42:58,266 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,290 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,290 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 [2019-11-15 21:42:58,291 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,292 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:42:58,292 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,292 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-15 21:42:58,292 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,293 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-15 21:42:58,293 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:42:58,298 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,298 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 [2019-11-15 21:42:58,299 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,299 INFO L202 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-15 21:42:58,300 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,300 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,314 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-15 21:42:58,315 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,401 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,402 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 [2019-11-15 21:42:58,403 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,403 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,403 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,404 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,406 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:42:58,406 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,409 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,409 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 [2019-11-15 21:42:58,410 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,410 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,410 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,411 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,421 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:42:58,425 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,439 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,448 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 [2019-11-15 21:42:58,450 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,451 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,456 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,456 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,458 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:42:58,458 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,463 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:42:58,476 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 [2019-11-15 21:42:58,478 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:42:58,478 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:42:58,478 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:42:58,479 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:42:58,486 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:42:58,489 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:42:58,630 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:42:58,724 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-11-15 21:42:58,724 INFO L444 ModelExtractionUtils]: 41 out of 46 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-11-15 21:42:58,728 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:42:58,730 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-15 21:42:58,731 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:42:58,731 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_cstrcpy_~to.base)_1, ULTIMATE.start_cstrcpy_~to.offset) = 1*v_rep(select #length ULTIMATE.start_cstrcpy_~to.base)_1 - 1*ULTIMATE.start_cstrcpy_~to.offset Supporting invariants [] [2019-11-15 21:42:58,808 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2019-11-15 21:42:58,819 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-15 21:42:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:42:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:42:58,891 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:42:58,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:42:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:42:58,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-15 21:42:58,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:42:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:42:58,960 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 [2019-11-15 21:42:58,962 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states. Second operand 3 states. [2019-11-15 21:42:59,009 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states.. Second operand 3 states. Result 29 states and 33 transitions. Complement of second has 5 states. [2019-11-15 21:42:59,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:42:59,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 21:42:59,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-11-15 21:42:59,014 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-15 21:42:59,015 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:42:59,015 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-15 21:42:59,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:42:59,016 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-15 21:42:59,016 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:42:59,017 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 33 transitions. [2019-11-15 21:42:59,020 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:42:59,023 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-11-15 21:42:59,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 21:42:59,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 21:42:59,026 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 21:42:59,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:42:59,026 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:42:59,026 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:42:59,026 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:42:59,027 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:42:59,027 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:42:59,027 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:42:59,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 21:42:59,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:42:59 BoogieIcfgContainer [2019-11-15 21:42:59,034 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:42:59,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:42:59,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:42:59,035 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:42:59,036 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:42:54" (3/4) ... [2019-11-15 21:42:59,040 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:42:59,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:42:59,042 INFO L168 Benchmark]: Toolchain (without parser) took 5410.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 936.7 MB in the beginning and 952.3 MB in the end (delta: -15.6 MB). Peak memory consumption was 120.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:59,042 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:42:59,043 INFO L168 Benchmark]: CACSL2BoogieTranslator took 612.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:59,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.42 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. [2019-11-15 21:42:59,044 INFO L168 Benchmark]: Boogie Preprocessor took 34.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:59,045 INFO L168 Benchmark]: RCFGBuilder took 490.38 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:59,046 INFO L168 Benchmark]: BuchiAutomizer took 4213.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.5 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. [2019-11-15 21:42:59,046 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:42:59,051 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 612.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 936.7 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.42 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 34.17 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 490.38 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4213.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 957.5 MB in the end (delta: 138.9 MB). Peak memory consumption was 138.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 952.3 MB. 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[to] + -1 * to and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 15 SDslu, 6 SDs, 0 SdLazy, 3 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital202 mio100 ax108 hnf99 lsp89 ukn92 mio100 lsp46 div100 bol100 ite100 ukn100 eq195 hnf88 smp100 dnf179 smp97 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 103ms VariablesStem: 10 VariablesLoop: 7 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 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...