./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.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_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/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 d636ecd38a9bab1e233be153b35a44e893aa6784 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 03:03:03,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:03:03,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:03:03,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:03:03,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:03:03,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:03:03,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:03:03,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:03:03,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:03:03,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:03:03,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:03:03,424 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:03:03,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:03:03,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:03:03,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:03:03,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:03:03,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:03:03,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:03:03,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:03:03,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:03:03,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:03:03,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:03:03,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:03:03,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:03:03,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:03:03,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:03:03,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:03:03,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:03:03,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:03:03,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:03:03,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:03:03,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:03:03,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:03:03,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:03:03,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:03:03,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:03:03,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:03:03,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:03:03,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:03:03,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:03:03,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:03:03,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:03:03,519 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:03:03,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:03:03,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:03:03,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:03:03,521 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:03:03,521 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:03:03,521 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:03:03,522 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:03:03,522 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:03:03,522 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:03:03,522 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:03:03,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:03:03,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:03:03,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:03:03,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:03:03,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:03:03,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:03:03,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:03:03,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:03:03,524 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:03:03,525 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:03:03,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:03:03,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:03:03,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:03:03,526 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:03:03,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:03:03,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:03:03,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:03:03,527 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:03:03,528 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:03:03,528 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_47b32123-286e-45df-9131-1a5aaf7480a2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d636ecd38a9bab1e233be153b35a44e893aa6784 [2020-11-28 03:03:03,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:03:03,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:03:03,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:03:03,851 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:03:03,852 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:03:03,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i [2020-11-28 03:03:03,922 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/data/d2bec0d22/1c3109643b3d4f66b054c4774b66ab6c/FLAG9a8182899 [2020-11-28 03:03:04,541 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:03:04,542 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/sv-benchmarks/c/termination-15/cstrncmp_mixed_alloca.i [2020-11-28 03:03:04,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/data/d2bec0d22/1c3109643b3d4f66b054c4774b66ab6c/FLAG9a8182899 [2020-11-28 03:03:04,838 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/bin/uautomizer/data/d2bec0d22/1c3109643b3d4f66b054c4774b66ab6c [2020-11-28 03:03:04,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:03:04,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:03:04,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:04,849 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:03:04,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:03:04,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:04" (1/1) ... [2020-11-28 03:03:04,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35b28a55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:04, skipping insertion in model container [2020-11-28 03:03:04,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:03:04" (1/1) ... [2020-11-28 03:03:04,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:03:04,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:03:05,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:05,338 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:03:05,406 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:03:05,490 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:03:05,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05 WrapperNode [2020-11-28 03:03:05,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:03:05,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:05,494 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:03:05,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:03:05,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:03:05,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:03:05,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:03:05,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:03:05,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... [2020-11-28 03:03:05,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:03:05,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:03:05,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:03:05,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:03:05,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/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 03:03:05,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:03:05,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:03:05,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:03:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:03:05,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:03:05,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:03:06,118 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:03:06,118 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 03:03:06,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:06 BoogieIcfgContainer [2020-11-28 03:03:06,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:03:06,121 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:03:06,121 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:03:06,124 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:03:06,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:03:06,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:03:04" (1/3) ... [2020-11-28 03:03:06,126 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2596c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:06, skipping insertion in model container [2020-11-28 03:03:06,126 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:03:06,126 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:03:05" (2/3) ... [2020-11-28 03:03:06,127 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2596c264 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:03:06, skipping insertion in model container [2020-11-28 03:03:06,127 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:03:06,127 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:06" (3/3) ... [2020-11-28 03:03:06,128 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrncmp_mixed_alloca.i [2020-11-28 03:03:06,183 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:03:06,183 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:03:06,183 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:03:06,183 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:03:06,183 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:03:06,184 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:03:06,184 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:03:06,184 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:03:06,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:03:06,213 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:03:06,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:06,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:06,220 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:03:06,220 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:03:06,220 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:03:06,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states. [2020-11-28 03:03:06,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:03:06,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:06,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:06,223 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:03:06,224 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:03:06,230 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 10#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_~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); 9#L385-1true call main_#t~malloc218.base, main_#t~malloc218.offset := #Ultimate.allocOnStack(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.allocOnStack(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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 03:03:06,231 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~post205;havoc cstrncmp_#t~mem207;havoc cstrncmp_#t~mem206;havoc cstrncmp_#t~short208;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, cstrncmp_#t~post212.offset - 1;havoc cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset; 6#L369-5true [2020-11-28 03:03:06,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:06,237 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 1 times [2020-11-28 03:03:06,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:06,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307335750] [2020-11-28 03:03:06,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:06,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,353 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,400 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:06,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:06,402 INFO L82 PathProgramCache]: Analyzing trace with hash 52587176, now seen corresponding path program 1 times [2020-11-28 03:03:06,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:06,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19997456] [2020-11-28 03:03:06,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:06,458 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 03:03:06,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19997456] [2020-11-28 03:03:06,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:03:06,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:03:06,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443542711] [2020-11-28 03:03:06,463 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-11-28 03:03:06,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:03:06,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:03:06,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:03:06,480 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-11-28 03:03:06,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:03:06,514 INFO L93 Difference]: Finished difference Result 19 states and 26 transitions. [2020-11-28 03:03:06,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:03:06,516 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 26 transitions. [2020-11-28 03:03:06,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:03:06,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 11 states and 14 transitions. [2020-11-28 03:03:06,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2020-11-28 03:03:06,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2020-11-28 03:03:06,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2020-11-28 03:03:06,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:06,523 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:03:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2020-11-28 03:03:06,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-28 03:03:06,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:03:06,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-28 03:03:06,550 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:03:06,550 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-28 03:03:06,550 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:03:06,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2020-11-28 03:03:06,551 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2020-11-28 03:03:06,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:03:06,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:03:06,552 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:03:06,552 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2020-11-28 03:03:06,552 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_~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.allocOnStack(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.allocOnStack(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, 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 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 03:03:06,553 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~post205;havoc cstrncmp_#t~mem207;havoc cstrncmp_#t~mem206;havoc cstrncmp_#t~short208;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, cstrncmp_#t~post212.offset - 1;havoc cstrncmp_#t~post212.base, cstrncmp_#t~post212.offset; 53#L369-5 [2020-11-28 03:03:06,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:06,554 INFO L82 PathProgramCache]: Analyzing trace with hash 889572238, now seen corresponding path program 2 times [2020-11-28 03:03:06,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:06,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596532155] [2020-11-28 03:03:06,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,575 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,604 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:06,605 INFO L82 PathProgramCache]: Analyzing trace with hash 52587238, now seen corresponding path program 1 times [2020-11-28 03:03:06,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:06,605 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526101588] [2020-11-28 03:03:06,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:06,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,622 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,656 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,660 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:06,661 INFO L82 PathProgramCache]: Analyzing trace with hash -2120298631, now seen corresponding path program 1 times [2020-11-28 03:03:06,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:03:06,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833895137] [2020-11-28 03:03:06,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:03:06,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:03:06,756 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:03:06,764 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:03:07,081 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2020-11-28 03:03:07,226 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-11-28 03:03:07,810 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2020-11-28 03:03:07,991 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-11-28 03:03:08,004 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:03:08,006 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:03:08,006 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:03:08,006 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:03:08,006 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:03:08,010 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:08,011 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:03:08,012 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:03:08,012 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrncmp_mixed_alloca.i_Iteration2_Lasso [2020-11-28 03:03:08,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:03:08,013 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:03:08,040 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 03:03:08,046 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 03:03:08,051 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 03:03:08,067 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 03:03:08,070 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 03:03:08,082 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 03:03:08,089 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 03:03:08,094 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 03:03:08,097 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 03:03:08,109 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 03:03:08,117 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 03:03:08,121 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 03:03:08,511 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2020-11-28 03:03:08,705 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2020-11-28 03:03:08,706 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 03:03:08,717 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 03:03:08,720 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 03:03:08,724 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 03:03:08,731 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 03:03:08,737 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 03:03:08,739 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 03:03:08,741 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 03:03:08,743 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 03:03:08,745 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 03:03:08,749 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 03:03:08,752 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 03:03:09,445 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:03:09,450 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/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) [2020-11-28 03:03:09,458 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 Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:09,460 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:09,461 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:09,461 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:09,461 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:09,461 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:09,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:09,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:03:09,469 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/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) [2020-11-28 03:03:09,519 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 03:03:09,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:09,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:03:09,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:03:09,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:09,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:09,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:03:09,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:03:09,524 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/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 03:03:09,560 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 03:03:09,561 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:03:09,562 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-11-28 03:03:09,562 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:03:09,562 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:03:09,570 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-11-28 03:03:09,571 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:03:09,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:03:09,608 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2020-11-28 03:03:09,609 INFO L444 ModelExtractionUtils]: 3 out of 13 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47b32123-286e-45df-9131-1a5aaf7480a2/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 03:03:09,621 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-11-28 03:03:09,629 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:03:09,629 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:03:09,630 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrncmp_~n) = 1*ULTIMATE.start_cstrncmp_~n Supporting invariants [] [2020-11-28 03:03:09,828 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-11-28 03:03:09,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:03:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:09,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-28 03:03:09,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:09,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:03:09,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-28 03:03:09,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:03:09,990 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 03:03:10,056 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 03:03:10,059 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 03:03:10,060 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand 4 states. [2020-11-28 03:03:10,129 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 03:03:10,132 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 03:03:10,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-11-28 03:03:10,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2020-11-28 03:03:10,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 5 letters. [2020-11-28 03:03:10,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:10,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 11 letters. Loop has 5 letters. [2020-11-28 03:03:10,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:10,137 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 10 letters. [2020-11-28 03:03:10,137 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:03:10,137 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2020-11-28 03:03:10,140 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:03:10,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-11-28 03:03:10,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:03:10,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:03:10,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:03:10,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:03:10,141 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:10,141 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:10,141 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:03:10,141 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-11-28 03:03:10,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:03:10,141 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:03:10,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:03:10,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:03:10 BoogieIcfgContainer [2020-11-28 03:03:10,147 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:03:10,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:03:10,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:03:10,148 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:03:10,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:03:06" (3/4) ... [2020-11-28 03:03:10,158 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:03:10,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:03:10,161 INFO L168 Benchmark]: Toolchain (without parser) took 5314.41 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 72.6 MB in the beginning and 114.4 MB in the end (delta: -41.7 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:10,161 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory is still 38.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:10,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.90 ms. Allocated memory is still 100.7 MB. Free memory was 72.5 MB in the beginning and 60.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:10,164 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.00 ms. Allocated memory is still 100.7 MB. Free memory was 60.7 MB in the beginning and 58.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:10,166 INFO L168 Benchmark]: Boogie Preprocessor took 44.20 ms. Allocated memory is still 100.7 MB. Free memory was 58.9 MB in the beginning and 57.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:10,167 INFO L168 Benchmark]: RCFGBuilder took 514.41 ms. Allocated memory is still 100.7 MB. Free memory was 57.6 MB in the beginning and 41.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:03:10,174 INFO L168 Benchmark]: BuchiAutomizer took 4026.02 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 41.2 MB in the beginning and 114.4 MB in the end (delta: -73.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:10,174 INFO L168 Benchmark]: Witness Printer took 11.47 ms. Allocated memory is still 159.4 MB. Free memory is still 114.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:03:10,180 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory is still 38.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.90 ms. Allocated memory is still 100.7 MB. Free memory was 72.5 MB in the beginning and 60.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.00 ms. Allocated memory is still 100.7 MB. Free memory was 60.7 MB in the beginning and 58.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.20 ms. Allocated memory is still 100.7 MB. Free memory was 58.9 MB in the beginning and 57.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 514.41 ms. Allocated memory is still 100.7 MB. Free memory was 57.6 MB in the beginning and 41.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 4026.02 ms. Allocated memory was 100.7 MB in the beginning and 159.4 MB in the end (delta: 58.7 MB). Free memory was 41.2 MB in the beginning and 114.4 MB in the end (delta: -73.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 11.47 ms. Allocated memory is still 159.4 MB. Free memory is still 114.4 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 3.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. 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: inital244 mio100 ax100 hnf100 lsp87 ukn86 mio100 lsp52 div100 bol100 ite100 ukn100 eq187 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 75ms 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...