./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileDecr.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileDecr.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 a76a93feca7c314bf25e39b953063fea01fd6c04 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:57,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:57,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:57,674 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:57,675 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:57,676 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:57,678 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:57,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:57,691 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:57,695 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:57,696 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:57,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:57,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:57,699 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:57,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:57,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:57,702 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:57,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:57,705 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:57,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:57,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:57,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:57,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:57,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:57,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:57,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:57,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:57,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:57,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:57,724 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:57,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:57,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:57,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:57,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:57,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:57,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:57,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:57,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:57,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:57,729 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:57,730 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:57,731 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:51:57,758 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:57,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:57,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:57,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:57,759 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:57,760 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:51:57,760 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:51:57,760 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:51:57,760 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:51:57,760 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:51:57,761 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:51:57,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:57,761 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:57,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:57,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:57,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:51:57,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:51:57,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:51:57,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:57,762 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:51:57,762 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:57,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:51:57,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:57,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:57,763 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:51:57,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:57,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:57,764 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:51:57,764 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:51:57,765 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_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 -> a76a93feca7c314bf25e39b953063fea01fd6c04 [2019-11-25 08:51:57,944 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:57,960 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:57,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:57,964 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:57,966 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:57,967 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/WhileDecr.c [2019-11-25 08:51:58,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/data/df214d948/1703bc991971436ea16eb5ef6addf403/FLAG4e4b823c7 [2019-11-25 08:51:58,444 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:58,445 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/sv-benchmarks/c/termination-restricted-15/WhileDecr.c [2019-11-25 08:51:58,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/data/df214d948/1703bc991971436ea16eb5ef6addf403/FLAG4e4b823c7 [2019-11-25 08:51:58,467 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/bin/uautomizer/data/df214d948/1703bc991971436ea16eb5ef6addf403 [2019-11-25 08:51:58,470 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:58,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:58,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:58,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:58,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:58,481 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,483 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c917c75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58, skipping insertion in model container [2019-11-25 08:51:58,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:58,511 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:58,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:58,651 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:58,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:58,734 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:58,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58 WrapperNode [2019-11-25 08:51:58,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:58,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:58,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:58,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:58,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:58,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:58,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:58,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:58,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,772 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,772 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... [2019-11-25 08:51:58,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:58,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:58,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:58,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:58,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:58,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:58,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:58,986 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:58,986 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:51:58,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:58 BoogieIcfgContainer [2019-11-25 08:51:58,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:58,988 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:51:58,988 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:51:58,992 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:51:58,993 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:58,993 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:51:58" (1/3) ... [2019-11-25 08:51:58,995 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@560d8b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:58, skipping insertion in model container [2019-11-25 08:51:58,995 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:58,995 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:58" (2/3) ... [2019-11-25 08:51:58,996 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@560d8b46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:58, skipping insertion in model container [2019-11-25 08:51:58,997 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:58,997 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:58" (3/3) ... [2019-11-25 08:51:58,999 INFO L371 chiAutomizerObserver]: Analyzing ICFG WhileDecr.c [2019-11-25 08:51:59,040 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:51:59,040 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:51:59,040 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:51:59,040 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:59,043 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:59,043 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:51:59,043 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:59,043 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:51:59,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:51:59,071 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:51:59,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:59,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:59,078 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:51:59,078 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:51:59,078 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:51:59,078 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-11-25 08:51:59,079 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:51:59,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:59,079 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:59,079 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:51:59,080 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:51:59,087 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 5#L9-2true [2019-11-25 08:51:59,087 INFO L796 eck$LassoCheckResult]: Loop: 5#L9-2true assume !!(main_~i~0 > 5);main_~i~0 := main_~i~0 - 1; 5#L9-2true [2019-11-25 08:51:59,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:59,093 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:51:59,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:59,099 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627668318] [2019-11-25 08:51:59,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:59,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:59,176 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:59,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:59,177 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-11-25 08:51:59,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:59,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621823672] [2019-11-25 08:51:59,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:59,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:59,189 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:59,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:59,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-25 08:51:59,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:59,190 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497270229] [2019-11-25 08:51:59,191 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:59,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:59,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:59,241 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:59,242 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:59,242 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:59,242 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:59,242 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:51:59,243 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:59,243 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:59,243 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:59,243 INFO L133 ssoRankerPreferences]: Filename of dumped script: WhileDecr.c_Iteration1_Loop [2019-11-25 08:51:59,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:59,244 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:59,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:59,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:59,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:59,400 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:59,400 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:59,405 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:59,406 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:59,417 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:59,417 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:59,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:59,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:59,428 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:59,428 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:59,444 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:59,444 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:59,455 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:51:59,455 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:59,467 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:51:59,468 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:59,468 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:59,469 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:59,469 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:59,469 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:51:59,469 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:59,469 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:59,469 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:59,469 INFO L133 ssoRankerPreferences]: Filename of dumped script: WhileDecr.c_Iteration1_Loop [2019-11-25 08:51:59,469 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:59,469 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:59,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:59,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:59,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:59,547 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:59,551 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:59,569 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 [2019-11-25 08:51:59,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:59,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:59,573 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:59,573 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:59,582 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:59,582 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:51:59,591 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:59,607 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 [2019-11-25 08:51:59,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:59,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:59,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:59,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:59,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:59,615 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:51:59,619 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:59,629 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 [2019-11-25 08:51:59,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:59,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:59,631 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:59,631 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:59,631 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:59,632 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:59,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:51:59,635 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:51:59,639 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:51:59,639 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8c7bdf78-bfb1-4ec6-8c2b-47f5f7447e81/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 [2019-11-25 08:51:59,653 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:51:59,653 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:51:59,653 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:51:59,654 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-25 08:51:59,662 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:51:59,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:59,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:59,699 WARN L253 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:51:59,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:59,707 WARN L253 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:51:59,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:59,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:59,723 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:51:59,724 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-11-25 08:51:59,762 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2019-11-25 08:51:59,766 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 [2019-11-25 08:51:59,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:51:59,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-11-25 08:51:59,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-11-25 08:51:59,770 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:59,770 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-11-25 08:51:59,771 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:59,771 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-25 08:51:59,772 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:59,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-11-25 08:51:59,777 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:51:59,779 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-25 08:51:59,781 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:51:59,781 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:51:59,781 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:51:59,782 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:51:59,782 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:59,782 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:59,782 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:59,782 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:51:59,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:59,783 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:51:59,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:51:59,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:51:59 BoogieIcfgContainer [2019-11-25 08:51:59,789 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:51:59,790 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:59,791 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:59,791 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:59,792 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:58" (3/4) ... [2019-11-25 08:51:59,797 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:51:59,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:59,801 INFO L168 Benchmark]: Toolchain (without parser) took 1327.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 951.4 MB in the beginning and 1.0 GB in the end (delta: -58.7 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,802 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:59,803 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,805 INFO L168 Benchmark]: Boogie Preprocessor took 13.72 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. [2019-11-25 08:51:59,806 INFO L168 Benchmark]: RCFGBuilder took 208.64 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,807 INFO L168 Benchmark]: BuchiAutomizer took 801.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:59,808 INFO L168 Benchmark]: Witness Printer took 6.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:59,817 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 260.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.72 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 208.64 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 801.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.9 MB). Peak memory consumption was 93.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.81 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 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 i and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 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...