./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrncmp_malloc.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncmp_malloc.i -s /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 56be9dfe64f940b7419bf11610ecc3d24973c46d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:20:19,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:20:19,562 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:20:19,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:20:19,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:20:19,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:20:19,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:20:19,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:20:19,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:20:19,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:20:19,653 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:20:19,654 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:20:19,655 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:20:19,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:20:19,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:20:19,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:20:19,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:20:19,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:20:19,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:20:19,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:20:19,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:20:19,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:20:19,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:20:19,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:20:19,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:20:19,689 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:20:19,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:20:19,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:20:19,693 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:20:19,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:20:19,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:20:19,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:20:19,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:20:19,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:20:19,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:20:19,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:20:19,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:20:19,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:20:19,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:20:19,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:20:19,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:20:19,705 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:20:19,748 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:20:19,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:20:19,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:20:19,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:20:19,751 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:20:19,752 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:20:19,752 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:20:19,752 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:20:19,752 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:20:19,752 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:20:19,754 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:20:19,754 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:20:19,754 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:20:19,754 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:20:19,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:20:19,755 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:20:19,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:20:19,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:20:19,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:20:19,756 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:20:19,756 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:20:19,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:20:19,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:20:19,756 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:20:19,757 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:20:19,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:20:19,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:20:19,757 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:20:19,758 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:20:19,760 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:20:19,760 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 56be9dfe64f940b7419bf11610ecc3d24973c46d [2020-11-28 03:20:20,034 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:20:20,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:20:20,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:20:20,066 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:20:20,067 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:20:20,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrncmp_malloc.i [2020-11-28 03:20:20,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/data/8305b6524/cae3c572efda467ba4cf65ba7f27ebf1/FLAG20fb92675 [2020-11-28 03:20:20,631 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:20:20,635 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/sv-benchmarks/c/termination-15/cstrncmp_malloc.i [2020-11-28 03:20:20,649 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/data/8305b6524/cae3c572efda467ba4cf65ba7f27ebf1/FLAG20fb92675 [2020-11-28 03:20:20,970 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/data/8305b6524/cae3c572efda467ba4cf65ba7f27ebf1 [2020-11-28 03:20:20,972 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:20:20,974 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:20:20,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:20,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:20:20,983 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:20:20,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:20" (1/1) ... [2020-11-28 03:20:20,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc208ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:20, skipping insertion in model container [2020-11-28 03:20:20,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:20:20" (1/1) ... [2020-11-28 03:20:20,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:20:21,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:20:21,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:21,368 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:20:21,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:20:21,466 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:20:21,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21 WrapperNode [2020-11-28 03:20:21,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:20:21,468 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:21,468 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:20:21,468 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:20:21,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:20:21,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:20:21,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:20:21,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:20:21,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,550 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... [2020-11-28 03:20:21,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:20:21,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:20:21,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:20:21,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:20:21,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:20:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:20:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 03:20:21,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:20:21,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:20:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:20:22,039 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:20:22,039 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 03:20:22,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:22 BoogieIcfgContainer [2020-11-28 03:20:22,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:20:22,042 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:20:22,042 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:20:22,058 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:20:22,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:22,059 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:20:20" (1/3) ... [2020-11-28 03:20:22,069 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@476a15b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:20:22, skipping insertion in model container [2020-11-28 03:20:22,069 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:22,070 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:20:21" (2/3) ... [2020-11-28 03:20:22,070 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@476a15b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:20:22, skipping insertion in model container [2020-11-28 03:20:22,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:20:22,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:22" (3/3) ... [2020-11-28 03:20:22,072 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncmp_malloc.i [2020-11-28 03:20:22,124 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:20:22,124 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:20:22,124 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:20:22,125 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:20:22,125 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:20:22,125 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:20:22,125 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:20:22,125 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:20:22,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:20:22,149 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:20:22,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:22,149 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:22,154 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:22,154 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:20:22,154 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:20:22,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:20:22,156 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:20:22,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:22,157 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:22,157 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:22,157 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:20:22,164 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 11#L-1true havoc main_#res;havoc main_#t~nondet216, main_#t~nondet217, main_#t~malloc218.base, main_#t~malloc218.offset, main_#t~malloc219.base, main_#t~malloc219.offset, main_#t~nondet220, main_#t~ret221, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet216;havoc main_#t~nondet216;main_~length2~0 := main_#t~nondet217;havoc main_#t~nondet217; 12#L382true assume !(main_~length1~0 < 1); 15#L382-2true assume !(main_~length2~0 < 1); 10#L385-1true call main_#t~malloc218.base, main_#t~malloc218.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc218.base, main_#t~malloc218.offset;call main_#t~malloc219.base, main_#t~malloc219.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc219.base, main_#t~malloc219.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~nondet220;havoc cstrncmp_#res;havoc cstrncmp_#t~mem209, cstrncmp_#t~short210, cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset, cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset, cstrncmp_#t~post205, cstrncmp_#t~mem206, cstrncmp_#t~mem207, cstrncmp_#t~short208, cstrncmp_#t~mem213, cstrncmp_#t~mem214, cstrncmp_#t~ite215, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;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;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 20#L367true assume !(0 == cstrncmp_~n); 6#L369-5true [2020-11-28 03:20:22,165 INFO L796 eck$LassoCheckResult]: Loop: 6#L369-5true cstrncmp_#t~post205 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post205 - 1;cstrncmp_#t~short208 := cstrncmp_#t~post205 > 0; 17#L369-1true assume cstrncmp_#t~short208;call cstrncmp_#t~mem206 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem207 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short208 := cstrncmp_#t~mem206 == cstrncmp_#t~mem207; 4#L369-3true assume !!cstrncmp_#t~short208;havoc cstrncmp_#t~short208;havoc cstrncmp_#t~mem207;havoc cstrncmp_#t~mem206;havoc cstrncmp_#t~post205;cstrncmp_#t~short210 := 0 == cstrncmp_~n; 14#L370true assume cstrncmp_#t~short210; 19#L370-2true assume !cstrncmp_#t~short210;havoc cstrncmp_#t~mem209;havoc cstrncmp_#t~short210;cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post211.base, 1 + cstrncmp_#t~post211.offset;havoc cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset;cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post212.base, 1 + cstrncmp_#t~post212.offset;havoc cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset; 6#L369-5true [2020-11-28 03:20:22,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:22,171 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2020-11-28 03:20:22,179 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:22,179 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145795436] [2020-11-28 03:20:22,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,275 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,297 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,317 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:22,319 INFO L82 PathProgramCache]: Analyzing trace with hash 52587176, now seen corresponding path program 1 times [2020-11-28 03:20:22,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:22,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159484371] [2020-11-28 03:20:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:22,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:22,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159484371] [2020-11-28 03:20:22,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:20:22,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:20:22,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652645642] [2020-11-28 03:20:22,379 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:20:22,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:20:22,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:20:22,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:20:22,395 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-11-28 03:20:22,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:20:22,446 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-11-28 03:20:22,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:20:22,449 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-11-28 03:20:22,451 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:20:22,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 14 transitions. [2020-11-28 03:20:22,455 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 03:20:22,455 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 03:20:22,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-28 03:20:22,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:20:22,456 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:20:22,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-28 03:20:22,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 03:20:22,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:20:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 03:20:22,484 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:20:22,485 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:20:22,485 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:20:22,485 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-28 03:20:22,488 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:20:22,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:20:22,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:20:22,489 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:20:22,489 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:20:22,489 INFO L794 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 46#L-1 havoc main_#res;havoc main_#t~nondet216, main_#t~nondet217, main_#t~malloc218.base, main_#t~malloc218.offset, main_#t~malloc219.base, main_#t~malloc219.offset, main_#t~nondet220, main_#t~ret221, main_~length1~0, main_~length2~0, main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset, main_~res~0;main_~length1~0 := main_#t~nondet216;havoc main_#t~nondet216;main_~length2~0 := main_#t~nondet217;havoc main_#t~nondet217; 47#L382 assume !(main_~length1~0 < 1); 50#L382-2 assume !(main_~length2~0 < 1); 55#L385-1 call main_#t~malloc218.base, main_#t~malloc218.offset := #Ultimate.allocOnHeap(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc218.base, main_#t~malloc218.offset;call main_#t~malloc219.base, main_#t~malloc219.offset := #Ultimate.allocOnHeap(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc219.base, main_#t~malloc219.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~nondet220;havoc cstrncmp_#res;havoc cstrncmp_#t~mem209, cstrncmp_#t~short210, cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset, cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset, cstrncmp_#t~post205, cstrncmp_#t~mem206, cstrncmp_#t~mem207, cstrncmp_#t~short208, cstrncmp_#t~mem213, cstrncmp_#t~mem214, cstrncmp_#t~ite215, cstrncmp_~s1.base, cstrncmp_~s1.offset, cstrncmp_~s2.base, cstrncmp_~s2.offset, cstrncmp_~n, cstrncmp_~uc1~0, cstrncmp_~uc2~0;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;havoc cstrncmp_~uc1~0;havoc cstrncmp_~uc2~0; 56#L367 assume !(0 == cstrncmp_~n); 53#L369-5 [2020-11-28 03:20:22,490 INFO L796 eck$LassoCheckResult]: Loop: 53#L369-5 cstrncmp_#t~post205 := cstrncmp_~n;cstrncmp_~n := cstrncmp_#t~post205 - 1;cstrncmp_#t~short208 := cstrncmp_#t~post205 > 0; 54#L369-1 assume cstrncmp_#t~short208;call cstrncmp_#t~mem206 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);call cstrncmp_#t~mem207 := read~int(cstrncmp_~s2.base, cstrncmp_~s2.offset, 1);cstrncmp_#t~short208 := cstrncmp_#t~mem206 == cstrncmp_#t~mem207; 48#L369-3 assume !!cstrncmp_#t~short208;havoc cstrncmp_#t~short208;havoc cstrncmp_#t~mem207;havoc cstrncmp_#t~mem206;havoc cstrncmp_#t~post205;cstrncmp_#t~short210 := 0 == cstrncmp_~n; 49#L370 assume !cstrncmp_#t~short210;call cstrncmp_#t~mem209 := read~int(cstrncmp_~s1.base, cstrncmp_~s1.offset, 1);cstrncmp_#t~short210 := 0 == cstrncmp_#t~mem209; 52#L370-2 assume !cstrncmp_#t~short210;havoc cstrncmp_#t~mem209;havoc cstrncmp_#t~short210;cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset := cstrncmp_~s1.base, cstrncmp_~s1.offset;cstrncmp_~s1.base, cstrncmp_~s1.offset := cstrncmp_#t~post211.base, 1 + cstrncmp_#t~post211.offset;havoc cstrncmp_#t~post211.base, cstrncmp_#t~post211.offset;cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset := cstrncmp_~s2.base, cstrncmp_~s2.offset;cstrncmp_~s2.base, cstrncmp_~s2.offset := cstrncmp_#t~post212.base, 1 + cstrncmp_#t~post212.offset;havoc cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset; 53#L369-5 [2020-11-28 03:20:22,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:22,491 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 2 times [2020-11-28 03:20:22,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:22,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551865897] [2020-11-28 03:20:22,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:22,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,528 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,552 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:22,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:22,553 INFO L82 PathProgramCache]: Analyzing trace with hash 52587238, now seen corresponding path program 1 times [2020-11-28 03:20:22,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:22,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266221774] [2020-11-28 03:20:22,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,588 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:22,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:22,589 INFO L82 PathProgramCache]: Analyzing trace with hash -2120298631, now seen corresponding path program 1 times [2020-11-28 03:20:22,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:20:22,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547835348] [2020-11-28 03:20:22,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:20:22,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:20:22,664 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:20:22,671 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:20:22,947 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2020-11-28 03:20:23,416 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-11-28 03:20:23,596 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-11-28 03:20:23,612 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:20:23,613 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:20:23,614 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:20:23,614 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:20:23,615 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:20:23,615 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:23,620 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:20:23,621 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:20:23,621 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp_malloc.i_Iteration2_Lasso [2020-11-28 03:20:23,621 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:20:23,623 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:20:23,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,701 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:23,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,138 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2020-11-28 03:20:24,322 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-11-28 03:20:24,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,340 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:24,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-28 03:20:25,467 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2020-11-28 03:20:25,536 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:20:25,541 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:25,566 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:20:25,569 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:25,569 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:25,570 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:25,570 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:25,570 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:25,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:25,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:25,575 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:25,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:20:25,616 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:25,616 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:25,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:25,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:25,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:25,617 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:25,617 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:25,618 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:25,640 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:20:25,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:25,642 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:20:25,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:20:25,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:25,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:25,643 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:20:25,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:20:25,644 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:25,669 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-28 03:20:25,671 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:20:25,671 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 03:20:25,671 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:20:25,671 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:20:25,681 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 03:20:25,682 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:20:25,689 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:20:25,724 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-28 03:20:25,725 INFO L444 ModelExtractionUtils]: 9 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da8abf03-3d48-49b0-8a6d-f5500c0415c3/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:20:25,729 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:20:25,732 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:20:25,733 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:20:25,733 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~n) = 1*ULTIMATE.start_cstrncmp_~n Supporting invariants [] [2020-11-28 03:20:25,938 INFO L297 tatePredicateManager]: 16 out of 16 supporting invariants were superfluous and have been removed [2020-11-28 03:20:25,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:20:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:26,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:20:26,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:20:26,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:20:26,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:20:26,069 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:20:26,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:20:26,110 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-11-28 03:20:26,111 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-28 03:20:26,197 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 21 states and 26 transitions. Complement of second has 6 states. [2020-11-28 03:20:26,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-28 03:20:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:20:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-11-28 03:20:26,201 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 5 letters. [2020-11-28 03:20:26,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:26,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2020-11-28 03:20:26,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:26,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 10 letters. [2020-11-28 03:20:26,204 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:20:26,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2020-11-28 03:20:26,207 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:20:26,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-11-28 03:20:26,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:20:26,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:20:26,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:20:26,208 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:20:26,208 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:26,208 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:26,208 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:20:26,208 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:20:26,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:20:26,208 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:20:26,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:20:26,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:20:26 BoogieIcfgContainer [2020-11-28 03:20:26,213 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:20:26,214 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:20:26,214 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:20:26,214 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:20:26,215 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:20:22" (3/4) ... [2020-11-28 03:20:26,219 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:20:26,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:20:26,221 INFO L168 Benchmark]: Toolchain (without parser) took 5245.41 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 67.5 MB in the beginning and 86.0 MB in the end (delta: -18.4 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:26,222 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 75.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:26,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 491.34 ms. Allocated memory is still 98.6 MB. Free memory was 67.5 MB in the beginning and 59.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:26,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.85 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 57.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:26,225 INFO L168 Benchmark]: Boogie Preprocessor took 55.08 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 56.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:26,227 INFO L168 Benchmark]: RCFGBuilder took 458.09 ms. Allocated memory is still 98.6 MB. Free memory was 56.4 MB in the beginning and 74.2 MB in the end (delta: -17.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:26,232 INFO L168 Benchmark]: BuchiAutomizer took 4171.60 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 74.2 MB in the beginning and 86.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:20:26,232 INFO L168 Benchmark]: Witness Printer took 4.87 ms. Allocated memory is still 123.7 MB. Free memory is still 86.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:20:26,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 75.5 MB. Free memory was 35.5 MB in the beginning and 35.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 491.34 ms. Allocated memory is still 98.6 MB. Free memory was 67.5 MB in the beginning and 59.7 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.85 ms. Allocated memory is still 98.6 MB. Free memory was 59.7 MB in the beginning and 57.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.08 ms. Allocated memory is still 98.6 MB. Free memory was 57.7 MB in the beginning and 56.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 458.09 ms. Allocated memory is still 98.6 MB. Free memory was 56.4 MB in the beginning and 74.2 MB in the end (delta: -17.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4171.60 ms. Allocated memory was 98.6 MB in the beginning and 123.7 MB in the end (delta: 25.2 MB). Free memory was 74.2 MB in the beginning and 86.0 MB in the end (delta: -11.8 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. * Witness Printer took 4.87 ms. Allocated memory is still 123.7 MB. Free memory is still 86.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 34 SDtfs, 12 SDslu, 23 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital240 mio100 ax100 hnf99 lsp87 ukn86 mio100 lsp44 div100 bol100 ite100 ukn100 eq197 hnf87 smp100 dnf182 smp91 tf100 neg96 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 66ms VariablesStem: 3 VariablesLoop: 2 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...