./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c --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/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 85017c4a5a64f245bd703090448e8d5785d54b75 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:10,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:10,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:10,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:10,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:10,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:10,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:10,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:10,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:10,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:10,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:10,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:10,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:10,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:10,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:10,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:10,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:10,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:10,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:10,897 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:10,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:10,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:10,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:10,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:10,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:10,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:10,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:10,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:10,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:10,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:10,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:10,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:10,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:10,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:10,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:10,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:10,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:10,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:10,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:10,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:10,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:10,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-10-22 08:59:10,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:10,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:10,936 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:10,936 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:10,936 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:10,936 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-10-22 08:59:10,937 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-10-22 08:59:10,937 INFO L138 SettingsManager]: * Use old map elimination=false [2019-10-22 08:59:10,937 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-10-22 08:59:10,937 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-10-22 08:59:10,937 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-10-22 08:59:10,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:10,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 08:59:10,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:10,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:10,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-10-22 08:59:10,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-10-22 08:59:10,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-10-22 08:59:10,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:10,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-10-22 08:59:10,939 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:10,939 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-10-22 08:59:10,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:10,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:10,941 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-10-22 08:59:10,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:10,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:10,942 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-10-22 08:59:10,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-10-22 08:59:10,943 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/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 -> 85017c4a5a64f245bd703090448e8d5785d54b75 [2019-10-22 08:59:10,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:10,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:10,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:10,998 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:10,999 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:10,999 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2019-10-22 08:59:11,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/data/580edc2f3/4b5224ae6275429f8ec7323827703c08/FLAGf4270b12c [2019-10-22 08:59:11,416 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:11,417 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Introduction.c [2019-10-22 08:59:11,422 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/data/580edc2f3/4b5224ae6275429f8ec7323827703c08/FLAGf4270b12c [2019-10-22 08:59:11,433 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/bin/uautomizer/data/580edc2f3/4b5224ae6275429f8ec7323827703c08 [2019-10-22 08:59:11,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:11,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:11,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:11,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:11,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:11,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@255f46e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11, skipping insertion in model container [2019-10-22 08:59:11,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:11,466 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:11,597 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:11,601 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:11,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:11,681 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:11,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11 WrapperNode [2019-10-22 08:59:11,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:11,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:11,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:11,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:11,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:11,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:11,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:11,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:11,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... [2019-10-22 08:59:11,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:11,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:11,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:11,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:11,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 [2019-10-22 08:59:11,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:11,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:11,922 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:11,922 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 08:59:11,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:11 BoogieIcfgContainer [2019-10-22 08:59:11,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:11,924 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-10-22 08:59:11,924 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-10-22 08:59:11,929 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-10-22 08:59:11,930 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:11,930 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.10 08:59:11" (1/3) ... [2019-10-22 08:59:11,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3de49a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:11, skipping insertion in model container [2019-10-22 08:59:11,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:11,932 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:11" (2/3) ... [2019-10-22 08:59:11,932 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3de49a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.10 08:59:11, skipping insertion in model container [2019-10-22 08:59:11,932 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-10-22 08:59:11,933 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:11" (3/3) ... [2019-10-22 08:59:11,934 INFO L371 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Introduction.c [2019-10-22 08:59:11,987 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-10-22 08:59:11,989 INFO L357 BuchiCegarLoop]: Hoare is false [2019-10-22 08:59:11,989 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-10-22 08:59:11,989 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:11,989 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:11,989 INFO L361 BuchiCegarLoop]: Difference is false [2019-10-22 08:59:11,989 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:11,990 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-10-22 08:59:12,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-10-22 08:59:12,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:59:12,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:12,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:12,028 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:59:12,030 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:59:12,030 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-10-22 08:59:12,030 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-10-22 08:59:12,031 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-10-22 08:59:12,031 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-10-22 08:59:12,031 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-10-22 08:59:12,031 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-10-22 08:59:12,031 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-10-22 08:59:12,039 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := 1; 5#L18-2true [2019-10-22 08:59:12,039 INFO L793 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~x~0 > 0);main_~x~0 := main_~x~0 - main_~y~0;main_~y~0 := 1 + main_~y~0; 5#L18-2true [2019-10-22 08:59:12,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:12,045 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-10-22 08:59:12,051 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:12,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775349527] [2019-10-22 08:59:12,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,139 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:12,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:12,140 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-10-22 08:59:12,140 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:12,141 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966411469] [2019-10-22 08:59:12,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,141 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:12,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,160 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:12,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:12,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-10-22 08:59:12,162 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:12,162 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881944418] [2019-10-22 08:59:12,162 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,162 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:12,163 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 08:59:12,175 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 08:59:12,279 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:59:12,279 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:59:12,280 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:59:12,280 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:59:12,280 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-10-22 08:59:12,280 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:12,280 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:59:12,280 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:59:12,280 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2019-10-22 08:59:12,280 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:59:12,281 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:59:12,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:12,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:12,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:12,483 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:59:12,488 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 [2019-10-22 08:59:12,496 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:59:12,497 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:59:12,508 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:59:12,508 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/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 [2019-10-22 08:59:12,519 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:59:12,519 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:59:12,525 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-10-22 08:59:12,525 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/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 [2019-10-22 08:59:12,532 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-10-22 08:59:12,532 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fc3750a2-56be-4fa1-97b4-a13f366f16a3/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 [2019-10-22 08:59:12,544 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-10-22 08:59:12,545 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-10-22 08:59:14,670 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-10-22 08:59:14,672 INFO L210 LassoAnalysis]: Preferences: [2019-10-22 08:59:14,672 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-10-22 08:59:14,672 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-10-22 08:59:14,672 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-10-22 08:59:14,672 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-10-22 08:59:14,673 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-10-22 08:59:14,673 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-10-22 08:59:14,673 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-10-22 08:59:14,673 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Introduction.c_Iteration1_Loop [2019-10-22 08:59:14,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-10-22 08:59:14,673 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-10-22 08:59:14,674 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:14,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:14,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-10-22 08:59:14,740 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-10-22 08:59:14,745 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-10-22 08:59:14,746 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 [2019-10-22 08:59:14,748 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:14,748 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:14,749 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:14,749 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:14,753 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:59:14,753 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:14,760 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:14,763 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 [2019-10-22 08:59:14,764 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:14,764 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:14,765 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:14,765 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:14,767 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-10-22 08:59:14,767 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-10-22 08:59:14,787 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:14,788 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 [2019-10-22 08:59:14,790 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:14,792 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:14,792 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:14,792 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:14,793 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-10-22 08:59:14,793 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-10-22 08:59:14,794 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:14,806 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:14,809 INFO L489 LassoAnalysis]: Using template '2-nested'. [2019-10-22 08:59:14,809 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 [2019-10-22 08:59:14,810 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:14,810 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:14,810 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:14,810 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:59:14,815 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:59:14,818 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:59:14,823 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:14,823 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 [2019-10-22 08:59:14,832 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:14,832 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:14,832 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:14,832 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:59:14,835 INFO L400 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-10-22 08:59:14,835 INFO L401 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-10-22 08:59:14,851 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-10-22 08:59:14,860 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 [2019-10-22 08:59:14,861 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-10-22 08:59:14,861 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-10-22 08:59:14,861 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-10-22 08:59:14,861 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-10-22 08:59:14,861 INFO L204 nArgumentSynthesizer]: 3 template conjuncts. [2019-10-22 08:59:14,862 INFO L400 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-10-22 08:59:14,862 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-10-22 08:59:14,871 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-10-22 08:59:14,888 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-10-22 08:59:14,889 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-10-22 08:59:14,890 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-10-22 08:59:14,891 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-10-22 08:59:14,891 INFO L510 LassoAnalysis]: Proved termination. [2019-10-22 08:59:14,891 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~y~0 + 1 f1 = 2*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-10-22 08:59:14,894 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-10-22 08:59:14,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:14,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-22 08:59:14,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:14,957 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 08:59:14,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:59:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:14,974 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 [2019-10-22 08:59:14,975 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2019-10-22 08:59:15,021 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. [2019-10-22 08:59:15,024 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 [2019-10-22 08:59:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-10-22 08:59:15,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2019-10-22 08:59:15,027 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2019-10-22 08:59:15,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:15,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2019-10-22 08:59:15,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:15,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2019-10-22 08:59:15,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-10-22 08:59:15,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2019-10-22 08:59:15,031 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:59:15,035 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-10-22 08:59:15,036 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-10-22 08:59:15,037 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-10-22 08:59:15,037 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-10-22 08:59:15,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-10-22 08:59:15,038 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:15,038 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:15,038 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:15,038 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-10-22 08:59:15,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:15,038 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-10-22 08:59:15,038 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-10-22 08:59:15,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.10 08:59:15 BoogieIcfgContainer [2019-10-22 08:59:15,045 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-10-22 08:59:15,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:15,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:15,046 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:15,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:11" (3/4) ... [2019-10-22 08:59:15,050 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 08:59:15,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:15,055 INFO L168 Benchmark]: Toolchain (without parser) took 3615.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -94.3 MB). Peak memory consumption was 42.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:15,056 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:15,056 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:15,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.95 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. [2019-10-22 08:59:15,057 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 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. [2019-10-22 08:59:15,058 INFO L168 Benchmark]: RCFGBuilder took 189.69 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:15,058 INFO L168 Benchmark]: BuchiAutomizer took 3120.83 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: 75.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:15,059 INFO L168 Benchmark]: Witness Printer took 5.02 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. [2019-10-22 08:59:15,062 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.95 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. * Boogie Preprocessor took 19.58 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 189.69 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3120.83 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: 75.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.02 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 2-nested ranking function (if -2 * y + 1 > 0 then 1 else 0), (if -2 * y + 1 > 0 then -2 * y + 1 else 2 * x) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. 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: inital17 mio100 ax170 hnf93 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...