./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i -s /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/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 a273450068a0d5a7644f3536efd5c3c568bd1daf ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:48:32,722 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:48:32,723 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:48:32,732 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:48:32,732 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:48:32,732 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:48:32,733 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:48:32,734 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:48:32,735 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:48:32,736 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:48:32,736 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:48:32,737 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:48:32,737 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:48:32,738 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:48:32,739 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:48:32,739 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:48:32,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:48:32,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:48:32,742 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:48:32,743 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:48:32,744 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:48:32,745 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:48:32,746 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:48:32,746 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:48:32,746 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:48:32,747 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:48:32,747 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:48:32,748 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:48:32,749 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:48:32,749 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:48:32,750 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:48:32,750 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:48:32,750 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:48:32,750 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:48:32,751 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:48:32,751 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:48:32,752 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 14:48:32,762 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:48:32,762 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:48:32,763 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:48:32,763 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:48:32,763 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:48:32,763 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:48:32,763 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:48:32,763 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:48:32,764 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:48:32,764 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:48:32,764 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:48:32,764 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:48:32,764 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:48:32,764 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:48:32,764 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:48:32,765 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:48:32,766 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:48:32,766 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:48:32,766 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:48:32,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:48:32,766 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:48:32,766 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:48:32,767 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:48:32,767 INFO L133 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/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/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 -> a273450068a0d5a7644f3536efd5c3c568bd1daf [2018-11-18 14:48:32,791 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:48:32,799 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:48:32,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:48:32,802 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:48:32,803 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:48:32,803 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/../../sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i [2018-11-18 14:48:32,838 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/data/7965d83d1/7dfa1d1f279c47a0b58b0a75126decb9/FLAGcc88911a9 [2018-11-18 14:48:33,266 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:48:33,266 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/sv-benchmarks/c/termination-15/cstrchr_reverse_alloca_true-termination.c.i [2018-11-18 14:48:33,272 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/data/7965d83d1/7dfa1d1f279c47a0b58b0a75126decb9/FLAGcc88911a9 [2018-11-18 14:48:33,280 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/uautomizer/data/7965d83d1/7dfa1d1f279c47a0b58b0a75126decb9 [2018-11-18 14:48:33,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:48:33,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:48:33,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:48:33,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:48:33,285 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:48:33,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5c5464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33, skipping insertion in model container [2018-11-18 14:48:33,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:48:33,316 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:48:33,510 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:48:33,517 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:48:33,595 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:48:33,628 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:48:33,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33 WrapperNode [2018-11-18 14:48:33,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:48:33,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:48:33,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:48:33,629 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:48:33,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:48:33,654 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:48:33,654 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:48:33,654 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:48:33,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... [2018-11-18 14:48:33,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:48:33,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:48:33,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:48:33,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:48:33,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbc18725-a12c-4e55-b801-f812a7beb9b0/bin-2019/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 [2018-11-18 14:48:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:48:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:48:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:48:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:48:33,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:48:33,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:48:33,885 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:48:33,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:48:33 BoogieIcfgContainer [2018-11-18 14:48:33,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:48:33,886 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:48:33,886 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:48:33,889 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:48:33,890 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:48:33,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:48:33" (1/3) ... [2018-11-18 14:48:33,891 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72acaaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:48:33, skipping insertion in model container [2018-11-18 14:48:33,891 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:48:33,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:48:33" (2/3) ... [2018-11-18 14:48:33,891 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72acaaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:48:33, skipping insertion in model container [2018-11-18 14:48:33,891 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:48:33,892 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:48:33" (3/3) ... [2018-11-18 14:48:33,893 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrchr_reverse_alloca_true-termination.c.i [2018-11-18 14:48:33,940 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:48:33,941 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:48:33,941 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:48:33,941 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:48:33,941 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:48:33,941 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:48:33,941 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:48:33,941 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:48:33,942 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:48:33,951 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-18 14:48:33,970 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:48:33,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:33,970 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:33,976 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 14:48:33,977 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 14:48:33,977 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:48:33,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-18 14:48:33,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:48:33,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:48:33,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:48:33,978 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 14:48:33,978 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 14:48:33,984 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet211, main_#t~malloc212.base, main_#t~malloc212.offset, main_#t~nondet213, main_#t~ret214.base, main_#t~ret214.offset, main_~length~0, main_~nondetString~0.base, main_~nondetString~0.offset;main_~length~0 := main_#t~nondet211;havoc main_#t~nondet211; 9#L372true assume !(main_~length~0 < 1); 12#L372-2true call main_#t~malloc212.base, main_#t~malloc212.offset := #Ultimate.alloc(main_~length~0);main_~nondetString~0.base, main_~nondetString~0.offset := main_#t~malloc212.base, main_#t~malloc212.offset;call write~int(0, main_~nondetString~0.base, main_~nondetString~0.offset, 1);main_~nondetString~0.base, main_~nondetString~0.offset := main_~nondetString~0.base, main_~nondetString~0.offset + (main_~length~0 - 1);assume { :begin_inline_cstrchr } true;cstrchr_#in~s.base, cstrchr_#in~s.offset, cstrchr_#in~c := main_~nondetString~0.base, main_~nondetString~0.offset, main_#t~nondet213;havoc cstrchr_#res.base, cstrchr_#res.offset;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset, cstrchr_#t~mem205, cstrchr_#t~mem206, cstrchr_#t~short207, cstrchr_#t~mem209, cstrchr_#t~ite210.base, cstrchr_#t~ite210.offset, cstrchr_~s.base, cstrchr_~s.offset, cstrchr_~c;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#in~s.base, cstrchr_#in~s.offset;cstrchr_~c := cstrchr_#in~c; 11#L366-6true [2018-11-18 14:48:33,984 INFO L796 eck$LassoCheckResult]: Loop: 11#L366-6true assume true; 4#L366-1true call cstrchr_#t~mem205 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := 0 != cstrchr_#t~mem205; 6#L366-2true assume cstrchr_#t~short207;call cstrchr_#t~mem206 := read~int(cstrchr_~s.base, cstrchr_~s.offset, 1);cstrchr_#t~short207 := cstrchr_#t~mem206 != (if cstrchr_~c % 256 <= 127 then cstrchr_~c % 256 else cstrchr_~c % 256 - 256); 7#L366-4true assume !!cstrchr_#t~short207;havoc cstrchr_#t~short207;havoc cstrchr_#t~mem206;havoc cstrchr_#t~mem205;cstrchr_#t~post208.base, cstrchr_#t~post208.offset := cstrchr_~s.base, cstrchr_~s.offset;cstrchr_~s.base, cstrchr_~s.offset := cstrchr_#t~post208.base, cstrchr_#t~post208.offset - 1;havoc cstrchr_#t~post208.base, cstrchr_#t~post208.offset; 11#L366-6true [2018-11-18 14:48:33,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:33,989 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2018-11-18 14:48:33,990 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:33,990 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:34,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:34,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:34,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:34,075 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:34,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1325803, now seen corresponding path program 1 times [2018-11-18 14:48:34,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:34,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:34,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:34,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:34,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:34,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:34,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:34,096 INFO L82 PathProgramCache]: Analyzing trace with hash 176670927, now seen corresponding path program 1 times [2018-11-18 14:48:34,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:48:34,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:48:34,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:34,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:48:34,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:48:34,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:34,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:48:34,464 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:48:34,465 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:48:34,465 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:48:34,465 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:48:34,465 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:48:34,465 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:48:34,465 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:48:34,465 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:48:34,466 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrchr_reverse_alloca_true-termination.c.i_Iteration1_Lasso [2018-11-18 14:48:34,466 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:48:34,466 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:48:34,482 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,488 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:48:34,983 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2018-11-18 14:48:35,015 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:48:35,020 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:48:35,022 INFO L122 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 [2018-11-18 14:48:35,023 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,023 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,023 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,024 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,024 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,025 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,026 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,027 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,027 INFO L122 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 [2018-11-18 14:48:35,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,028 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,028 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,028 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,029 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,029 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,029 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,030 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,030 INFO L122 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 [2018-11-18 14:48:35,031 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,031 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,031 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,031 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,033 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:48:35,034 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:48:35,037 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,037 INFO L122 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 [2018-11-18 14:48:35,037 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,038 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,038 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,038 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,038 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,039 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,039 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,039 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,040 INFO L122 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 [2018-11-18 14:48:35,040 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,040 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,041 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,041 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,041 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,041 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,041 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,042 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,042 INFO L122 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 [2018-11-18 14:48:35,043 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,043 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,044 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,044 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,044 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,045 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,045 INFO L122 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 [2018-11-18 14:48:35,045 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,045 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,045 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,046 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,046 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,046 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,046 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,047 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,047 INFO L122 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 [2018-11-18 14:48:35,047 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,048 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,048 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,048 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,049 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:48:35,050 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:48:35,052 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,053 INFO L122 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 [2018-11-18 14:48:35,053 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,054 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,054 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,055 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,055 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,056 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,056 INFO L122 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 [2018-11-18 14:48:35,056 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,057 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:48:35,057 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,057 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,057 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,057 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:48:35,058 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:48:35,058 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:48:35,059 INFO L122 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 [2018-11-18 14:48:35,059 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:48:35,059 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:48:35,059 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:48:35,060 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:48:35,063 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 14:48:35,064 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 14:48:35,099 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:48:35,130 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-18 14:48:35,130 INFO L444 ModelExtractionUtils]: 19 out of 25 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-18 14:48:35,132 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:48:35,134 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-18 14:48:35,134 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:48:35,135 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrchr_~s.offset) = 2*ULTIMATE.start_cstrchr_~s.offset + 1 Supporting invariants [] [2018-11-18 14:48:35,142 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2018-11-18 14:48:35,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:48:35,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:35,173 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:48:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:48:35,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:48:35,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:48:35,199 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 [2018-11-18 14:48:35,200 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2018-11-18 14:48:35,230 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 33 states and 41 transitions. Complement of second has 7 states. [2018-11-18 14:48:35,231 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 [2018-11-18 14:48:35,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 14:48:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2018-11-18 14:48:35,234 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 14:48:35,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:48:35,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-18 14:48:35,235 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:48:35,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 4 letters. Loop has 8 letters. [2018-11-18 14:48:35,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:48:35,236 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 41 transitions. [2018-11-18 14:48:35,237 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:48:35,239 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2018-11-18 14:48:35,240 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 14:48:35,240 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 14:48:35,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 14:48:35,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:48:35,240 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:48:35,241 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:48:35,241 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:48:35,241 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:48:35,241 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:48:35,241 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:48:35,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 14:48:35,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:48:35 BoogieIcfgContainer [2018-11-18 14:48:35,245 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:48:35,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:48:35,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:48:35,246 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:48:35,246 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:48:33" (3/4) ... [2018-11-18 14:48:35,248 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:48:35,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:48:35,249 INFO L168 Benchmark]: Toolchain (without parser) took 1967.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.4 MB in the beginning and 890.7 MB in the end (delta: 59.7 MB). Peak memory consumption was 217.0 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:35,250 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:48:35,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.4 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:35,251 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.43 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:35,251 INFO L168 Benchmark]: Boogie Preprocessor took 14.52 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. [2018-11-18 14:48:35,251 INFO L168 Benchmark]: RCFGBuilder took 216.80 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:35,252 INFO L168 Benchmark]: BuchiAutomizer took 1359.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.7 MB in the end (delta: 223.8 MB). Peak memory consumption was 223.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:48:35,252 INFO L168 Benchmark]: Witness Printer took 3.39 ms. Allocated memory is still 1.2 GB. Free memory is still 890.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:48:35,254 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 950.4 MB in the beginning and 1.1 GB in the end (delta: -187.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.43 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.52 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 216.80 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: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1359.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.7 MB in the end (delta: 223.8 MB). Peak memory consumption was 223.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.39 ms. Allocated memory is still 1.2 GB. Free memory is still 890.7 MB. There was no memory consumed. 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 2 * s + 1 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 13 SDtfs, 26 SDslu, 9 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital178 mio100 ax100 hnf98 lsp98 ukn70 mio100 lsp37 div154 bol100 ite100 ukn100 eq153 hnf72 smp100 dnf784 smp27 tf100 neg95 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms 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...