./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/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 32bit --witnessprinter.graph.data.programhash b2d654b7b73105d319f19561f723c76c3f2a6a70 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:06:27,792 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:06:27,794 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:06:27,801 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:06:27,802 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:06:27,802 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:06:27,803 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:06:27,805 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:06:27,806 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:06:27,806 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:06:27,807 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:06:27,807 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:06:27,808 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:06:27,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:06:27,809 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:06:27,810 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:06:27,811 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:06:27,812 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:06:27,813 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:06:27,814 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:06:27,815 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:06:27,816 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:06:27,818 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:06:27,818 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:06:27,818 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:06:27,819 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:06:27,819 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:06:27,820 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:06:27,821 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:06:27,821 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:06:27,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:06:27,822 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:06:27,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:06:27,822 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:06:27,823 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:06:27,823 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:06:27,824 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 13:06:27,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:06:27,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:06:27,837 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:06:27,837 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:06:27,837 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:06:27,837 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 13:06:27,837 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 13:06:27,837 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 13:06:27,838 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 13:06:27,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 13:06:27,839 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:06:27,840 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 13:06:27,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:06:27,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:06:27,840 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 13:06:27,840 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:06:27,840 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:06:27,840 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 13:06:27,841 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 13:06:27,841 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_2b813179-69ab-4396-8b61-b3b5bdef4665/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2d654b7b73105d319f19561f723c76c3f2a6a70 [2018-11-23 13:06:27,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:06:27,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:06:27,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:06:27,872 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:06:27,872 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:06:27,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-11-23 13:06:27,910 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/data/aba837f55/89ab6fc0d32f4b17b85f8bb6098d1ac6/FLAG0b37d2110 [2018-11-23 13:06:28,276 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:06:28,276 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/sv-benchmarks/c/array-memsafety/openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-11-23 13:06:28,285 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/data/aba837f55/89ab6fc0d32f4b17b85f8bb6098d1ac6/FLAG0b37d2110 [2018-11-23 13:06:28,672 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/bin-2019/uautomizer/data/aba837f55/89ab6fc0d32f4b17b85f8bb6098d1ac6 [2018-11-23 13:06:28,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:06:28,676 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:06:28,677 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:06:28,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:06:28,679 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:06:28,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:28" (1/1) ... [2018-11-23 13:06:28,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97dd10c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:28, skipping insertion in model container [2018-11-23 13:06:28,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:06:28" (1/1) ... [2018-11-23 13:06:28,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:06:28,719 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:06:28,908 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:06:28,916 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:06:28,942 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:06:29,018 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:06:29,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29 WrapperNode [2018-11-23 13:06:29,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:06:29,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:06:29,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:06:29,020 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:06:29,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:06:29,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:06:29,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:06:29,059 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:06:29,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,080 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... [2018-11-23 13:06:29,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:06:29,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:06:29,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:06:29,083 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:06:29,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b813179-69ab-4396-8b61-b3b5bdef4665/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 [2018-11-23 13:06:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 13:06:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 13:06:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 13:06:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 13:06:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:06:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:06:29,387 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:06:29,387 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 13:06:29,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:29 BoogieIcfgContainer [2018-11-23 13:06:29,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:06:29,388 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 13:06:29,388 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 13:06:29,391 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 13:06:29,392 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:06:29,392 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:06:28" (1/3) ... [2018-11-23 13:06:29,393 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fafec37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:06:29, skipping insertion in model container [2018-11-23 13:06:29,393 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:06:29,393 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:06:29" (2/3) ... [2018-11-23 13:06:29,394 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3fafec37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:06:29, skipping insertion in model container [2018-11-23 13:06:29,394 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:06:29,394 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:29" (3/3) ... [2018-11-23 13:06:29,395 INFO L375 chiAutomizerObserver]: Analyzing ICFG openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i [2018-11-23 13:06:29,434 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:06:29,435 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 13:06:29,435 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 13:06:29,435 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 13:06:29,435 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:06:29,435 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:06:29,435 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 13:06:29,435 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:06:29,436 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 13:06:29,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-23 13:06:29,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 13:06:29,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:06:29,465 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:06:29,469 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 13:06:29,470 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-23 13:06:29,470 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 13:06:29,470 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-23 13:06:29,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-23 13:06:29,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:06:29,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:06:29,471 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-23 13:06:29,471 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-23 13:06:29,477 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true havoc main_#res;havoc main_#t~nondet11, main_#t~nondet12, main_#t~malloc13.base, main_#t~malloc13.offset, main_#t~malloc14.base, main_#t~malloc14.offset, main_#t~nondet15, main_#t~ret16, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;main_~length1~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~length2~0 := main_#t~nondet12;havoc main_#t~nondet12; 6#L556true assume !(main_~length1~0 < 1); 9#L556-2true assume !(main_~length2~0 < 1); 4#L559-1true call main_#t~malloc13.base, main_#t~malloc13.offset := #Ultimate.alloc(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc13.base, main_#t~malloc13.offset;call main_#t~malloc14.base, main_#t~malloc14.offset := #Ultimate.alloc(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc14.base, main_#t~malloc14.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1), 1);cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset, cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset, cstrncmp_#in~n := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_#t~nondet15;havoc cstrncmp_#res;havoc cstrncmp_#t~mem4, cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, cstrncmp_#t~mem5, cstrncmp_#t~mem7, cstrncmp_#t~pre6.base, cstrncmp_#t~pre6.offset, cstrncmp_#t~mem8, cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, cstrncmp_#t~mem10, cstrncmp_#t~pre2, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#in~s1.base, cstrncmp_#in~s1.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#in~s2.base, cstrncmp_#in~s2.offset;cstrncmp_~n := cstrncmp_#in~n; 10#L543true assume !(0 == cstrncmp_~n % 4294967296); 14#L545-4true [2018-11-23 13:06:29,477 INFO L796 eck$LassoCheckResult]: Loop: 14#L545-4true call cstrncmp_#t~mem4 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post3.base, 1 + cstrncmp_#t~post3.offset;call cstrncmp_#t~mem5 := read~int(cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset, 1); 5#L546true assume !(cstrncmp_#t~mem4 != cstrncmp_#t~mem5);havoc cstrncmp_#t~mem5;havoc cstrncmp_#t~mem4;havoc cstrncmp_#t~post3.base, cstrncmp_#t~post3.offset;cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post9.base, 1 + cstrncmp_#t~post9.offset;call cstrncmp_#t~mem10 := read~int(cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset, 1); 3#L548true assume !(0 == cstrncmp_#t~mem10);havoc cstrncmp_#t~post9.base, cstrncmp_#t~post9.offset;havoc cstrncmp_#t~mem10; 8#L545-1true cstrncmp_#t~pre2 := cstrncmp_~n - 1;cstrncmp_~n := cstrncmp_~n - 1; 11#L545-2true assume !!(0 != cstrncmp_#t~pre2 % 4294967296);havoc cstrncmp_#t~pre2; 14#L545-4true [2018-11-23 13:06:29,483 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:06:29,483 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2018-11-23 13:06:29,485 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:06:29,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:06:29,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:06:29,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:06:29,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:06:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:06:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:06:29,600 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:06:29,600 INFO L82 PathProgramCache]: Analyzing trace with hash 51691425, now seen corresponding path program 1 times [2018-11-23 13:06:29,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:06:29,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:06:29,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:06:29,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:06:29,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:06:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:06:29,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:06:29,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:06:29,629 INFO L82 PathProgramCache]: Analyzing trace with hash -2121194444, now seen corresponding path program 1 times [2018-11-23 13:06:29,629 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:06:29,629 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:06:29,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:06:29,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:06:29,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:06:29,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:06:29,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:06:29,865 WARN L180 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2018-11-23 13:06:30,099 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2018-11-23 13:06:30,179 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:06:30,180 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:06:30,180 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:06:30,180 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:06:30,180 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:06:30,181 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:06:30,181 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:06:30,181 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:06:30,181 INFO L131 ssoRankerPreferences]: Filename of dumped script: openbsd_cstrncmp-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-11-23 13:06:30,181 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:06:30,182 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:06:30,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,209 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,222 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,430 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2018-11-23 13:06:30,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,553 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:06:30,950 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:06:30,953 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:06:30,955 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 [2018-11-23 13:06:30,956 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,956 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,956 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,956 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,956 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,958 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,958 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,959 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,960 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 [2018-11-23 13:06:30,960 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,960 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,960 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,960 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,961 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,961 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,961 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,962 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,962 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 [2018-11-23 13:06:30,962 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,963 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,963 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,963 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,965 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:06:30,965 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:06:30,968 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,968 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 [2018-11-23 13:06:30,970 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,970 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,970 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,970 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,970 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,971 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,971 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,971 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,972 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 [2018-11-23 13:06:30,972 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,972 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,972 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,972 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,972 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,973 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,973 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,974 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,974 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 [2018-11-23 13:06:30,975 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,975 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,975 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,975 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,975 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,975 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,976 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,976 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,977 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 [2018-11-23 13:06:30,977 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,977 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,977 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,977 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,977 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,978 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,978 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,979 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,979 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 [2018-11-23 13:06:30,979 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,980 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,980 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,980 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,980 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,980 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,980 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,981 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,981 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 [2018-11-23 13:06:30,982 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,982 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,982 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,982 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,984 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:06:30,984 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:06:30,986 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,986 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 [2018-11-23 13:06:30,987 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,987 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,987 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,988 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:06:30,988 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,989 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,989 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 [2018-11-23 13:06:30,989 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,989 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:06:30,990 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:30,990 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 13:06:30,990 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,991 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 13:06:30,991 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:06:30,995 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:30,995 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 [2018-11-23 13:06:30,995 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:30,996 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-23 13:06:30,996 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:30,996 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:30,998 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-23 13:06:30,999 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:06:31,014 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:06:31,014 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 [2018-11-23 13:06:31,015 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:06:31,015 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:06:31,015 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:06:31,015 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:06:31,022 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:06:31,022 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:06:31,064 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:06:31,092 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-23 13:06:31,093 INFO L444 ModelExtractionUtils]: 40 out of 46 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-23 13:06:31,095 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:06:31,096 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 13:06:31,096 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:06:31,096 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~s2.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_1) = -1*ULTIMATE.start_cstrncmp_~s2.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc14.base)_1 Supporting invariants [] [2018-11-23 13:06:31,140 INFO L297 tatePredicateManager]: 15 out of 16 supporting invariants were superfluous and have been removed [2018-11-23 13:06:31,147 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 13:06:31,182 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:06:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:06:31,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:06:31,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:06:31,229 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:06:31,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:06:31,272 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-23 13:06:31,274 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 4 states. [2018-11-23 13:06:31,336 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 4 states. Result 33 states and 39 transitions. Complement of second has 7 states. [2018-11-23 13:06:31,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:06:31,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-23 13:06:31,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 27 transitions. [2018-11-23 13:06:31,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 5 letters. [2018-11-23 13:06:31,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:06:31,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 11 letters. Loop has 5 letters. [2018-11-23 13:06:31,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:06:31,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 27 transitions. Stem has 6 letters. Loop has 10 letters. [2018-11-23 13:06:31,342 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:06:31,343 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 39 transitions. [2018-11-23 13:06:31,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:06:31,346 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2018-11-23 13:06:31,347 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 13:06:31,347 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 13:06:31,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 13:06:31,349 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 13:06:31,349 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:06:31,349 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:06:31,349 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:06:31,349 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 13:06:31,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:06:31,350 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:06:31,350 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 13:06:31,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:06:31 BoogieIcfgContainer [2018-11-23 13:06:31,354 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 13:06:31,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:06:31,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:06:31,354 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:06:31,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:06:29" (3/4) ... [2018-11-23 13:06:31,357 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 13:06:31,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:06:31,358 INFO L168 Benchmark]: Toolchain (without parser) took 2682.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:06:31,358 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:06:31,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-11-23 13:06:31,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.31 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:06:31,360 INFO L168 Benchmark]: Boogie Preprocessor took 23.34 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 13:06:31,361 INFO L168 Benchmark]: RCFGBuilder took 304.88 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:06:31,361 INFO L168 Benchmark]: BuchiAutomizer took 1966.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. [2018-11-23 13:06:31,362 INFO L168 Benchmark]: Witness Printer took 2.95 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. [2018-11-23 13:06:31,364 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -193.6 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.31 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.34 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 304.88 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1966.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -17.3 MB). Peak memory consumption was 45.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 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. * 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 -1 * s2 + unknown-#length-unknown[__builtin_alloca (length2 * sizeof(char))] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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: 17 SDtfs, 17 SDslu, 13 SDs, 0 SdLazy, 12 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital233 mio100 ax100 hnf99 lsp86 ukn85 mio100 lsp47 div130 bol100 ite100 ukn100 eq154 hnf85 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 4 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...