./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i -s /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/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 129844975e50c282c73ac04fe5f01d2e5d98a0d5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 21:28:11,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 21:28:11,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 21:28:11,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 21:28:11,044 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 21:28:11,045 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 21:28:11,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 21:28:11,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 21:28:11,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 21:28:11,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 21:28:11,053 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 21:28:11,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 21:28:11,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 21:28:11,066 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 21:28:11,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 21:28:11,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 21:28:11,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 21:28:11,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 21:28:11,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 21:28:11,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 21:28:11,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 21:28:11,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 21:28:11,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 21:28:11,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 21:28:11,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 21:28:11,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 21:28:11,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 21:28:11,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 21:28:11,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 21:28:11,095 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 21:28:11,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 21:28:11,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 21:28:11,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 21:28:11,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 21:28:11,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 21:28:11,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 21:28:11,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 21:28:11,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 21:28:11,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 21:28:11,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 21:28:11,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 21:28:11,103 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 21:28:11,120 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 21:28:11,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 21:28:11,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 21:28:11,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 21:28:11,122 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 21:28:11,122 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 21:28:11,122 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 21:28:11,122 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 21:28:11,123 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 21:28:11,123 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 21:28:11,123 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 21:28:11,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 21:28:11,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 21:28:11,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 21:28:11,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 21:28:11,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 21:28:11,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 21:28:11,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 21:28:11,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 21:28:11,125 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 21:28:11,125 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 21:28:11,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 21:28:11,126 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 21:28:11,126 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 21:28:11,127 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 21:28:11,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 21:28:11,127 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 21:28:11,127 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 21:28:11,130 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 21:28:11,130 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/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 -> 129844975e50c282c73ac04fe5f01d2e5d98a0d5 [2019-11-15 21:28:11,162 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 21:28:11,177 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 21:28:11,182 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 21:28:11,184 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 21:28:11,185 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 21:28:11,187 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/../../sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2019-11-15 21:28:11,245 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/data/f7faabf7d/50a15ccbeb114e3187aa9a6a2724274b/FLAG8fe15cb1c [2019-11-15 21:28:11,739 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 21:28:11,740 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/sv-benchmarks/c/termination-15/cstrcmp_reverse_alloca.i [2019-11-15 21:28:11,759 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/data/f7faabf7d/50a15ccbeb114e3187aa9a6a2724274b/FLAG8fe15cb1c [2019-11-15 21:28:12,004 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/bin/uautomizer/data/f7faabf7d/50a15ccbeb114e3187aa9a6a2724274b [2019-11-15 21:28:12,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 21:28:12,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 21:28:12,012 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 21:28:12,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 21:28:12,015 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 21:28:12,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e37240 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12, skipping insertion in model container [2019-11-15 21:28:12,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,028 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 21:28:12,070 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 21:28:12,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:28:12,502 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 21:28:12,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 21:28:12,615 INFO L192 MainTranslator]: Completed translation [2019-11-15 21:28:12,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12 WrapperNode [2019-11-15 21:28:12,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 21:28:12,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 21:28:12,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 21:28:12,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 21:28:12,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 21:28:12,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 21:28:12,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 21:28:12,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 21:28:12,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,676 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... [2019-11-15 21:28:12,692 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 21:28:12,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 21:28:12,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 21:28:12,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 21:28:12,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_910eb016-8924-4bda-9efb-09fe14aef154/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 [2019-11-15 21:28:12,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 21:28:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 21:28:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 21:28:12,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 21:28:12,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 21:28:12,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 21:28:13,021 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 21:28:13,022 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-15 21:28:13,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:28:13 BoogieIcfgContainer [2019-11-15 21:28:13,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 21:28:13,024 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 21:28:13,024 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 21:28:13,027 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 21:28:13,028 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:28:13,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 09:28:12" (1/3) ... [2019-11-15 21:28:13,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@752b4400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:28:13, skipping insertion in model container [2019-11-15 21:28:13,030 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:28:13,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 09:28:12" (2/3) ... [2019-11-15 21:28:13,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@752b4400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 09:28:13, skipping insertion in model container [2019-11-15 21:28:13,031 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 21:28:13,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:28:13" (3/3) ... [2019-11-15 21:28:13,033 INFO L371 chiAutomizerObserver]: Analyzing ICFG cstrcmp_reverse_alloca.i [2019-11-15 21:28:13,089 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 21:28:13,090 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 21:28:13,090 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 21:28:13,090 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 21:28:13,090 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 21:28:13,091 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 21:28:13,091 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 21:28:13,091 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 21:28:13,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-15 21:28:13,130 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 21:28:13,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:28:13,131 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:28:13,138 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 21:28:13,139 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:28:13,139 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 21:28:13,139 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-15 21:28:13,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-15 21:28:13,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 21:28:13,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 21:28:13,142 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-15 21:28:13,142 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-15 21:28:13,152 INFO L791 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet214, main_#t~nondet215, main_#t~malloc216.base, main_#t~malloc216.offset, main_#t~malloc217.base, main_#t~malloc217.offset, main_#t~ret218, 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~nondet214;havoc main_#t~nondet214;main_~length2~0 := main_#t~nondet215;havoc main_#t~nondet215; 17#L378true assume !(main_~length1~0 < 1); 4#L378-2true assume !(main_~length2~0 < 1); 13#L381-1true call main_#t~malloc216.base, main_#t~malloc216.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc216.base, main_#t~malloc216.offset;call main_#t~malloc217.base, main_#t~malloc217.offset := #Ultimate.allocOnStack(main_~length2~0);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_#t~malloc217.base, main_#t~malloc217.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);call write~int(0, main_~nondetString2~0.base, main_~nondetString2~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);main_~nondetString2~0.base, main_~nondetString2~0.offset := main_~nondetString2~0.base, main_~nondetString2~0.offset + (main_~length2~0 - 1);cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset, cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset, main_~nondetString2~0.base, main_~nondetString2~0.offset;havoc cstrcmp_#res;havoc cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset, cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset, cstrcmp_#t~mem205, cstrcmp_#t~mem206, cstrcmp_#t~mem207, cstrcmp_#t~short208, cstrcmp_#t~mem211, cstrcmp_#t~mem212, cstrcmp_#t~ite213, cstrcmp_~s1.base, cstrcmp_~s1.offset, cstrcmp_~s2.base, cstrcmp_~s2.offset, cstrcmp_~uc1~0, cstrcmp_~uc2~0;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#in~s1.base, cstrcmp_#in~s1.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#in~s2.base, cstrcmp_#in~s2.offset;havoc cstrcmp_~uc1~0;havoc cstrcmp_~uc2~0; 7#L367-5true [2019-11-15 21:28:13,153 INFO L793 eck$LassoCheckResult]: Loop: 7#L367-5true call cstrcmp_#t~mem205 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);cstrcmp_#t~short208 := 0 != cstrcmp_#t~mem205; 3#L367-1true assume cstrcmp_#t~short208;call cstrcmp_#t~mem206 := read~int(cstrcmp_~s1.base, cstrcmp_~s1.offset, 1);call cstrcmp_#t~mem207 := read~int(cstrcmp_~s2.base, cstrcmp_~s2.offset, 1);cstrcmp_#t~short208 := cstrcmp_#t~mem206 == cstrcmp_#t~mem207; 5#L367-3true assume !!cstrcmp_#t~short208;havoc cstrcmp_#t~mem207;havoc cstrcmp_#t~mem206;havoc cstrcmp_#t~mem205;havoc cstrcmp_#t~short208;cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset := cstrcmp_~s1.base, cstrcmp_~s1.offset;cstrcmp_~s1.base, cstrcmp_~s1.offset := cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset - 1;havoc cstrcmp_#t~post209.base, cstrcmp_#t~post209.offset;cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset := cstrcmp_~s2.base, cstrcmp_~s2.offset;cstrcmp_~s2.base, cstrcmp_~s2.offset := cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset - 1;havoc cstrcmp_#t~post210.base, cstrcmp_#t~post210.offset; 7#L367-5true [2019-11-15 21:28:13,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:28:13,160 INFO L82 PathProgramCache]: Analyzing trace with hash 28695878, now seen corresponding path program 1 times [2019-11-15 21:28:13,167 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:28:13,167 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089644014] [2019-11-15 21:28:13,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:28:13,167 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:28:13,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:28:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:28:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:28:13,358 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:28:13,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:28:13,360 INFO L82 PathProgramCache]: Analyzing trace with hash 49755, now seen corresponding path program 1 times [2019-11-15 21:28:13,360 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:28:13,360 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317569243] [2019-11-15 21:28:13,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:28:13,361 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:28:13,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:28:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:28:13,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:28:13,385 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:28:13,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:28:13,388 INFO L82 PathProgramCache]: Analyzing trace with hash 180429558, now seen corresponding path program 1 times [2019-11-15 21:28:13,388 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 21:28:13,388 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516001445] [2019-11-15 21:28:13,388 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:28:13,389 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 21:28:13,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 21:28:13,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:28:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 21:28:13,505 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 21:28:13,705 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-11-15 21:28:14,209 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2019-11-15 21:28:14,379 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-11-15 21:28:14,393 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 21:28:14,395 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 21:28:14,395 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 21:28:14,395 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 21:28:14,396 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 21:28:14,396 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 21:28:14,396 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 21:28:14,396 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 21:28:14,397 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrcmp_reverse_alloca.i_Iteration1_Lasso [2019-11-15 21:28:14,397 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 21:28:14,397 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 21:28:14,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:14,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:14,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:14,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:14,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:14,900 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-11-15 21:28:15,144 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-11-15 21:28:15,145 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,148 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,151 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,171 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,180 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,192 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:15,199 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 21:28:16,053 WARN L191 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-11-15 21:28:16,270 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 21:28:16,275 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 21:28:16,277 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 [2019-11-15 21:28:16,283 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,285 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:28:16,286 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,286 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,286 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,288 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:28:16,289 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:28:16,291 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,292 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 [2019-11-15 21:28:16,293 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,293 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:28:16,293 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,293 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,294 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,294 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:28:16,294 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:28:16,295 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,296 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 [2019-11-15 21:28:16,297 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,297 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:28:16,297 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,297 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,298 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,298 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 21:28:16,298 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:28:16,299 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,300 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 [2019-11-15 21:28:16,300 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,301 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,301 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,301 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,304 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:28:16,304 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,311 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,311 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 [2019-11-15 21:28:16,315 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,315 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,315 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,316 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,326 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:28:16,326 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,347 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,348 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 [2019-11-15 21:28:16,349 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,349 INFO L202 nArgumentSynthesizer]: 4 stem disjuncts [2019-11-15 21:28:16,349 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,349 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,359 INFO L400 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2019-11-15 21:28:16,359 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,452 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,452 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 [2019-11-15 21:28:16,453 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,454 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,454 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,454 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,455 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:28:16,456 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,458 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,458 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 [2019-11-15 21:28:16,459 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,459 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 21:28:16,460 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,460 INFO L203 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-15 21:28:16,460 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,461 INFO L400 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-15 21:28:16,461 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 21:28:16,465 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,465 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 [2019-11-15 21:28:16,466 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,466 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,466 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,467 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,468 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:28:16,468 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,470 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,470 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 [2019-11-15 21:28:16,471 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,472 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,472 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,472 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,474 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:28:16,474 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,483 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 21:28:16,483 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 [2019-11-15 21:28:16,484 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 21:28:16,485 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 21:28:16,485 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 21:28:16,485 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 21:28:16,491 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 21:28:16,491 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 21:28:16,604 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 21:28:16,652 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-11-15 21:28:16,652 INFO L444 ModelExtractionUtils]: 39 out of 46 variables were initially zero. Simplification set additionally 4 variables to zero. [2019-11-15 21:28:16,659 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 21:28:16,660 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-15 21:28:16,661 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 21:28:16,661 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrcmp_~s1.offset) = 2*ULTIMATE.start_cstrcmp_~s1.offset + 1 Supporting invariants [] [2019-11-15 21:28:16,705 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2019-11-15 21:28:16,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 21:28:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:28:16,780 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 21:28:16,782 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:28:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 21:28:16,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 21:28:16,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 21:28:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 21:28:16,839 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 [2019-11-15 21:28:16,840 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-15 21:28:16,889 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 32 states and 41 transitions. Complement of second has 5 states. [2019-11-15 21:28:16,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-15 21:28:16,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 21:28:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2019-11-15 21:28:16,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 3 letters. [2019-11-15 21:28:16,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:28:16,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 8 letters. Loop has 3 letters. [2019-11-15 21:28:16,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:28:16,896 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 5 letters. Loop has 6 letters. [2019-11-15 21:28:16,897 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 21:28:16,898 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 41 transitions. [2019-11-15 21:28:16,901 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:28:16,904 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 0 states and 0 transitions. [2019-11-15 21:28:16,905 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 21:28:16,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 21:28:16,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 21:28:16,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 21:28:16,906 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:28:16,906 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:28:16,906 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 21:28:16,906 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 21:28:16,906 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 21:28:16,907 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 21:28:16,907 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 21:28:16,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 09:28:16 BoogieIcfgContainer [2019-11-15 21:28:16,914 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 21:28:16,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 21:28:16,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 21:28:16,915 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 21:28:16,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 09:28:13" (3/4) ... [2019-11-15 21:28:16,920 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 21:28:16,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 21:28:16,922 INFO L168 Benchmark]: Toolchain (without parser) took 4912.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 213.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -152.7 MB). Peak memory consumption was 61.2 MB. Max. memory is 11.5 GB. [2019-11-15 21:28:16,922 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:28:16,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:28:16,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. [2019-11-15 21:28:16,925 INFO L168 Benchmark]: Boogie Preprocessor took 26.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:28:16,925 INFO L168 Benchmark]: RCFGBuilder took 330.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:28:16,926 INFO L168 Benchmark]: BuchiAutomizer took 3890.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.4 MB). Peak memory consumption was 66.1 MB. Max. memory is 11.5 GB. [2019-11-15 21:28:16,927 INFO L168 Benchmark]: Witness Printer took 5.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 21:28:16,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 604.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -174.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.7 MB). Peak memory consumption was 8.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3890.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 75.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -9.4 MB). Peak memory consumption was 66.1 MB. Max. memory is 11.5 GB. * Witness Printer took 5.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * s1 + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 15 SDtfs, 27 SDslu, 8 SDs, 0 SdLazy, 7 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital225 mio100 ax100 hnf99 lsp97 ukn87 mio100 lsp52 div100 bol100 ite100 ukn100 eq192 hnf89 smp100 dnf133 smp97 tf100 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 104ms VariablesStem: 9 VariablesLoop: 6 DisjunctsStem: 4 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 12 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...