./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.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_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 847cffc9d6215c496aa28b39684013a0c5d7b1c3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 03:11:59,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:11:59,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:11:59,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:11:59,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:11:59,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:11:59,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:11:59,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:11:59,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:11:59,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:11:59,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:11:59,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:11:59,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:11:59,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:11:59,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:11:59,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:11:59,520 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:11:59,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:11:59,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:11:59,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:11:59,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:11:59,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:11:59,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:11:59,546 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:11:59,553 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:11:59,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:11:59,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:11:59,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:11:59,559 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:11:59,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:11:59,561 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:11:59,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:11:59,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:11:59,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:11:59,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:11:59,568 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:11:59,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:11:59,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:11:59,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:11:59,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:11:59,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:11:59,575 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-11-28 03:11:59,619 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:11:59,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:11:59,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:11:59,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:11:59,622 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:11:59,623 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-28 03:11:59,623 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-28 03:11:59,623 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-28 03:11:59,624 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-28 03:11:59,624 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-28 03:11:59,625 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-28 03:11:59,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:11:59,626 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:11:59,626 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:11:59,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:11:59,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-28 03:11:59,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-28 03:11:59,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-28 03:11:59,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:11:59,628 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-28 03:11:59,628 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:11:59,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-28 03:11:59,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:11:59,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:11:59,630 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-28 03:11:59,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:11:59,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:11:59,631 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:11:59,631 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-28 03:11:59,634 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-28 03:11:59,634 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_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 847cffc9d6215c496aa28b39684013a0c5d7b1c3 [2020-11-28 03:11:59,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:11:59,980 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:11:59,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:11:59,984 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:11:59,985 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:11:59,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/../../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2020-11-28 03:12:00,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/data/d951cadbc/fee64ddda0904d2fa5d00d7eb193b8a0/FLAGe513262a2 [2020-11-28 03:12:00,692 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:12:00,693 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2020-11-28 03:12:00,710 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/data/d951cadbc/fee64ddda0904d2fa5d00d7eb193b8a0/FLAGe513262a2 [2020-11-28 03:12:00,987 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/data/d951cadbc/fee64ddda0904d2fa5d00d7eb193b8a0 [2020-11-28 03:12:00,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:12:00,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:12:00,994 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:00,994 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:12:00,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:12:01,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:00" (1/1) ... [2020-11-28 03:12:01,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f4293fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01, skipping insertion in model container [2020-11-28 03:12:01,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:12:00" (1/1) ... [2020-11-28 03:12:01,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:12:01,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:12:01,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:01,476 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:12:01,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:12:01,626 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:12:01,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01 WrapperNode [2020-11-28 03:12:01,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:12:01,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:01,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:12:01,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:12:01,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:12:01,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:12:01,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:12:01,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:12:01,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,718 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... [2020-11-28 03:12:01,735 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:12:01,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:12:01,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:12:01,736 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:12:01,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 03:12:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:12:01,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:12:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:12:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:12:01,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:12:01,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:12:02,201 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:12:02,201 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 03:12:02,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:02 BoogieIcfgContainer [2020-11-28 03:12:02,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:12:02,206 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-28 03:12:02,207 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-28 03:12:02,211 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-28 03:12:02,212 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:12:02,212 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:12:00" (1/3) ... [2020-11-28 03:12:02,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d946510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:12:02, skipping insertion in model container [2020-11-28 03:12:02,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:12:02,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:12:01" (2/3) ... [2020-11-28 03:12:02,215 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d946510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:12:02, skipping insertion in model container [2020-11-28 03:12:02,215 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-28 03:12:02,215 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:02" (3/3) ... [2020-11-28 03:12:02,217 INFO L373 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-1.i [2020-11-28 03:12:02,341 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-28 03:12:02,347 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-28 03:12:02,347 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-28 03:12:02,347 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:12:02,347 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:12:02,348 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-28 03:12:02,348 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:12:02,348 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-28 03:12:02,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-28 03:12:02,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:12:02,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:12:02,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:12:02,446 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:12:02,446 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:12:02,447 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-28 03:12:02,447 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2020-11-28 03:12:02,448 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-11-28 03:12:02,449 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-28 03:12:02,449 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-28 03:12:02,450 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-11-28 03:12:02,450 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-11-28 03:12:02,459 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 3#L-1true havoc main_#res;havoc main_#t~nondet4, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~ret6, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet4;havoc main_#t~nondet4; 8#L556true assume !(main_~length1~0 < 1); 13#L556-2true call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1), 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset, cstrlen_#t~mem2, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 5#L550-3true [2020-11-28 03:12:02,459 INFO L796 eck$LassoCheckResult]: Loop: 5#L550-3true call cstrlen_#t~mem2 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 12#L550-1true assume !!(0 != cstrlen_#t~mem2);havoc cstrlen_#t~mem2;cstrlen_#t~post3.base, cstrlen_#t~post3.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post3.base, 1 + cstrlen_#t~post3.offset;havoc cstrlen_#t~post3.base, cstrlen_#t~post3.offset; 5#L550-3true [2020-11-28 03:12:02,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:02,467 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2020-11-28 03:12:02,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:02,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383110536] [2020-11-28 03:12:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:02,604 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:02,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:02,652 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:02,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:02,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2020-11-28 03:12:02,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:02,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296954661] [2020-11-28 03:12:02,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:02,668 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:02,676 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:02,679 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:02,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:02,682 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2020-11-28 03:12:02,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:12:02,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968625845] [2020-11-28 03:12:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:12:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:02,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:02,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:12:02,746 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:12:02,753 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:12:03,203 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-11-28 03:12:03,329 INFO L210 LassoAnalysis]: Preferences: [2020-11-28 03:12:03,330 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-28 03:12:03,330 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-28 03:12:03,330 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-28 03:12:03,331 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-28 03:12:03,331 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:03,331 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-28 03:12:03,331 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-28 03:12:03,331 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-1.i_Iteration1_Lasso [2020-11-28 03:12:03,331 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-28 03:12:03,332 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-28 03:12:03,355 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 03:12:03,362 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 03:12:03,366 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 03:12:03,370 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 03:12:03,377 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 03:12:03,382 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 03:12:03,388 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 03:12:03,392 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 03:12:03,399 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 03:12:03,445 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 03:12:03,448 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 03:12:03,453 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 03:12:03,708 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-11-28 03:12:03,802 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 03:12:04,087 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-28 03:12:04,491 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-28 03:12:04,497 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 03:12:04,509 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 03:12:04,512 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,513 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:04,513 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,513 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,513 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,516 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:12:04,516 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:12:04,519 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 03:12:04,549 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 03:12:04,551 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,551 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:04,551 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:12:04,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:12:04,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 03:12:04,613 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 03:12:04,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,615 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:04,615 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,615 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,615 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,618 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:12:04,618 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:12:04,621 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 03:12:04,650 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 03:12:04,652 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,653 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,653 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,653 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,657 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:04,658 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:12:04,683 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/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 03:12:04,734 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 03:12:04,736 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,737 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,737 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,737 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,741 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:04,741 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:04,747 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:04,798 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 03:12:04,801 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,801 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:04,801 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,801 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,801 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,802 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:12:04,803 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:12:04,804 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:04,845 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 03:12:04,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,847 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:04,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,847 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:12:04,848 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:12:04,850 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:04,877 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 03:12:04,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:04,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:12:04,904 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:04,935 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 03:12:04,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:04,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:04,939 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:04,939 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:04,949 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:04,949 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:12:04,971 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,025 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 03:12:05,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,028 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:05,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-28 03:12:05,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,033 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,096 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 03:12:05,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,099 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,099 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,099 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,103 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:05,103 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,109 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,161 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,170 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,178 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:05,178 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:12:05,188 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,237 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 03:12:05,239 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,239 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,240 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,240 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,244 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:05,244 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,249 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,302 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 03:12:05,304 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,305 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,305 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,305 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,308 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:05,309 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,314 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,363 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 03:12:05,366 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,367 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,367 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,367 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,379 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:05,379 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:12:05,392 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,421 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 03:12:05,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-28 03:12:05,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,424 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-28 03:12:05,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-28 03:12:05,426 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-11-28 03:12:05,426 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-11-28 03:12:05,433 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,489 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 03:12:05,493 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-28 03:12:05,493 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-28 03:12:05,493 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-28 03:12:05,494 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-28 03:12:05,510 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-28 03:12:05,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-28 03:12:05,795 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2020-11-28 03:12:05,796 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8083a423-ac33-4ae7-9f1f-97f58a9d9159/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-28 03:12:05,817 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-28 03:12:05,821 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-11-28 03:12:05,821 INFO L510 LassoAnalysis]: Proved termination. [2020-11-28 03:12:05,822 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5.base)_1 Supporting invariants [] [2020-11-28 03:12:05,885 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2020-11-28 03:12:05,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 03:12:05,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:12:05,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:05,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-28 03:12:05,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:12:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:12:06,007 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:12:06,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:12:06,038 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 03:12:06,057 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-11-28 03:12:06,059 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2020-11-28 03:12:06,153 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 20 states and 23 transitions. Complement of second has 6 states. [2020-11-28 03:12:06,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-11-28 03:12:06,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-11-28 03:12:06,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2020-11-28 03:12:06,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2020-11-28 03:12:06,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:12:06,158 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2020-11-28 03:12:06,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:12:06,159 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2020-11-28 03:12:06,159 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-28 03:12:06,160 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2020-11-28 03:12:06,162 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:12:06,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2020-11-28 03:12:06,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-28 03:12:06,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-28 03:12:06,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-28 03:12:06,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-28 03:12:06,168 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:06,168 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:06,168 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:12:06,168 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-28 03:12:06,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:12:06,169 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-28 03:12:06,169 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-28 03:12:06,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:12:06 BoogieIcfgContainer [2020-11-28 03:12:06,176 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-28 03:12:06,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:12:06,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:12:06,177 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:12:06,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:12:02" (3/4) ... [2020-11-28 03:12:06,181 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:12:06,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:12:06,183 INFO L168 Benchmark]: Toolchain (without parser) took 5189.92 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 50.0 MB in the beginning and 51.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:06,184 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 41.7 MB in the beginning and 41.6 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:06,185 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.08 ms. Allocated memory is still 81.8 MB. Free memory was 49.8 MB in the beginning and 50.4 MB in the end (delta: -578.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:06,185 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.98 ms. Allocated memory is still 81.8 MB. Free memory was 50.4 MB in the beginning and 48.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:06,186 INFO L168 Benchmark]: Boogie Preprocessor took 32.21 ms. Allocated memory is still 81.8 MB. Free memory was 48.7 MB in the beginning and 47.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:06,187 INFO L168 Benchmark]: RCFGBuilder took 469.36 ms. Allocated memory is still 81.8 MB. Free memory was 47.4 MB in the beginning and 34.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:06,188 INFO L168 Benchmark]: BuchiAutomizer took 3969.23 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 34.5 MB in the beginning and 51.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-11-28 03:12:06,188 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 119.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:12:06,192 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 81.8 MB. Free memory was 41.7 MB in the beginning and 41.6 MB in the end (delta: 34.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 633.08 ms. Allocated memory is still 81.8 MB. Free memory was 49.8 MB in the beginning and 50.4 MB in the end (delta: -578.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.98 ms. Allocated memory is still 81.8 MB. Free memory was 50.4 MB in the beginning and 48.7 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.21 ms. Allocated memory is still 81.8 MB. Free memory was 48.7 MB in the beginning and 47.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 469.36 ms. Allocated memory is still 81.8 MB. Free memory was 47.4 MB in the beginning and 34.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 3969.23 ms. Allocated memory was 81.8 MB in the beginning and 119.5 MB in the end (delta: 37.7 MB). Free memory was 34.5 MB in the beginning and 51.5 MB in the end (delta: -17.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.85 ms. Allocated memory is still 119.5 MB. Free memory is still 51.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * p + unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital113 mio100 ax115 hnf99 lsp81 ukn91 mio100 lsp46 div100 bol100 ite100 ukn100 eq193 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...