./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.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_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 85f2e4e7c23d8b1ce231f007b62f4b33450b6456 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 08:50:48,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:48,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:48,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:48,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:48,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:48,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:48,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:48,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:48,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:48,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:48,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:48,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:48,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:48,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:48,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:48,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:48,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:48,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:48,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:48,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:48,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:48,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:48,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:48,789 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:48,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:48,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:48,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:48,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:48,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:48,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:48,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:48,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:48,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:48,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:48,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:48,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:48,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:48,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:48,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:48,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:48,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:50:48,823 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:48,824 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:48,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:48,825 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:48,825 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:48,825 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:50:48,825 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:50:48,825 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:50:48,826 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:50:48,826 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:50:48,826 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:50:48,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:48,826 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:50:48,826 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:48,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:48,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:50:48,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:50:48,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:50:48,827 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:48,827 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:50:48,828 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:48,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:50:48,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:48,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:48,829 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:50:48,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:48,829 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:48,829 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:50:48,840 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:50:48,840 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_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 -> 85f2e4e7c23d8b1ce231f007b62f4b33450b6456 [2019-11-25 08:50:48,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:49,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:49,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:49,010 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:49,012 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:49,013 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2019-11-25 08:50:49,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/data/7e1b15a5b/b2edbf3e94fa4eca85a094b215856a02/FLAG8ab09dbbf [2019-11-25 08:50:49,444 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:49,445 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/sv-benchmarks/c/termination-crafted/Lobnya-Boolean-Reordered-2.c [2019-11-25 08:50:49,450 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/data/7e1b15a5b/b2edbf3e94fa4eca85a094b215856a02/FLAG8ab09dbbf [2019-11-25 08:50:49,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/data/7e1b15a5b/b2edbf3e94fa4eca85a094b215856a02 [2019-11-25 08:50:49,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:49,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:49,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:49,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:49,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:49,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:49" (1/1) ... [2019-11-25 08:50:49,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fdd7dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:49, skipping insertion in model container [2019-11-25 08:50:49,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:49" (1/1) ... [2019-11-25 08:50:49,876 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:49,891 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:50,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:50,082 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:50,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:50,188 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:50:50,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50 WrapperNode [2019-11-25 08:50:50,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:50,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:50,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:50:50,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:50:50,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:50:50,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:50:50,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:50:50,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:50:50,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... [2019-11-25 08:50:50,232 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:50:50,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:50:50,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:50:50,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:50:50,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 08:50:50,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:50:50,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:50:50,420 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:50:50,421 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-25 08:50:50,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:50 BoogieIcfgContainer [2019-11-25 08:50:50,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:50:50,422 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:50:50,422 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:50:50,424 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:50:50,425 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:50,425 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:50:49" (1/3) ... [2019-11-25 08:50:50,426 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7324b456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:50:50, skipping insertion in model container [2019-11-25 08:50:50,426 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:50,426 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:50" (2/3) ... [2019-11-25 08:50:50,427 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7324b456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:50:50, skipping insertion in model container [2019-11-25 08:50:50,427 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:50:50,427 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:50" (3/3) ... [2019-11-25 08:50:50,429 INFO L371 chiAutomizerObserver]: Analyzing ICFG Lobnya-Boolean-Reordered-2.c [2019-11-25 08:50:50,467 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:50:50,468 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:50:50,468 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:50:50,468 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:50:50,468 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:50:50,468 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:50:50,468 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:50:50,469 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:50:50,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:50:50,498 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:50:50,498 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:50,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:50,504 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:50:50,504 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:50:50,505 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:50:50,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-11-25 08:50:50,506 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:50:50,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:50,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:50,506 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:50:50,506 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:50:50,511 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~b~0;havoc main_~x~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~b~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L18true assume !!(main_~x~0 >= -2147483647); 10#L22-2true [2019-11-25 08:50:50,512 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 4#L22true assume main_~x~0 >= 0;main_~b~0 := 1; 10#L22-2true [2019-11-25 08:50:50,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:50,516 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-11-25 08:50:50,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:50,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852569320] [2019-11-25 08:50:50,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:50,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:50,602 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:50,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:50,604 INFO L82 PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times [2019-11-25 08:50:50,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:50,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541422504] [2019-11-25 08:50:50,604 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:50,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:50,623 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:50,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:50,624 INFO L82 PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times [2019-11-25 08:50:50,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:50,625 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719590297] [2019-11-25 08:50:50,625 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:50,638 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:50,703 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:50:50,703 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:50:50,704 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:50:50,704 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:50:50,704 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:50:50,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:50,705 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:50:50,705 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:50:50,705 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2019-11-25 08:50:50,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:50:50,706 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:50:50,727 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 08:50:50,735 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 08:50:50,740 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 08:50:50,743 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 08:50:50,767 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 08:50:50,909 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:50:50,910 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 08:50:50,921 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:50:50,921 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:50:50,929 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:50:50,929 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_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 08:50:50,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:50:50,940 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:50:50,943 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:50:50,944 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_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 08:50:50,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:50:50,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:50:50,953 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:50:50,953 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 08:50:50,958 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:50:50,958 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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 08:50:50,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:50:50,968 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:50:51,010 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:50:51,012 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:50:51,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:50:51,013 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:50:51,013 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:50:51,013 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:50:51,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:51,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:50:51,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:50:51,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered-2.c_Iteration1_Loop [2019-11-25 08:50:51,013 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:50:51,013 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:50:51,015 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 08:50:51,019 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 08:50:51,028 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 08:50:51,038 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 08:50:51,052 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 08:50:51,145 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:50:51,149 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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) [2019-11-25 08:50:51,156 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:51,158 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:50:51,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:50:51,159 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:50:51,159 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:50:51,164 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:50:51,164 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-25 08:50:51,169 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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) [2019-11-25 08:50:51,185 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 08:50:51,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:50:51,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:50:51,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:50:51,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:50:51,198 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:50:51,198 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:51,207 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_108bdaa9-66b3-4724-a3ba-d12f441f8639/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) [2019-11-25 08:50:51,226 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 08:50:51,228 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:50:51,229 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:50:51,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:50:51,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:50:51,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:50:51,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:50:51,233 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:51,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:50:51,240 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:50:51,240 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_108bdaa9-66b3-4724-a3ba-d12f441f8639/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:50:51,256 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:50:51,257 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:50:51,257 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:50:51,258 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-25 08:50:51,263 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:50:51,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:51,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:51,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:50:51,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:50:51,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:51,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:50:51,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:50:51,343 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 08:50:51,358 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-25 08:50:51,360 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-11-25 08:50:51,417 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 32 states and 39 transitions. Complement of second has 7 states. [2019-11-25 08:50:51,418 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-25 08:50:51,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-25 08:50:51,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2019-11-25 08:50:51,420 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2019-11-25 08:50:51,421 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:50:51,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-25 08:50:51,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:50:51,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-25 08:50:51,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:50:51,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 39 transitions. [2019-11-25 08:50:51,426 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:50:51,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 9 states and 12 transitions. [2019-11-25 08:50:51,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-25 08:50:51,431 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-11-25 08:50:51,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2019-11-25 08:50:51,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:50:51,432 INFO L688 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-11-25 08:50:51,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2019-11-25 08:50:51,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-11-25 08:50:51,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-25 08:50:51,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2019-11-25 08:50:51,456 INFO L711 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-25 08:50:51,456 INFO L591 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-25 08:50:51,457 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:50:51,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2019-11-25 08:50:51,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:50:51,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:50:51,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:50:51,458 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:50:51,458 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:50:51,458 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~b~0;havoc main_~x~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~b~0 := main_#t~nondet1;havoc main_#t~nondet1; 80#L18 assume !!(main_~x~0 >= -2147483647); 86#L22-2 assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 81#L22 [2019-11-25 08:50:51,458 INFO L796 eck$LassoCheckResult]: Loop: 81#L22 assume !(main_~x~0 >= 0);main_~b~0 := 0; 82#L22-2 assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 81#L22 [2019-11-25 08:50:51,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:51,459 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2019-11-25 08:50:51,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:51,459 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485140630] [2019-11-25 08:50:51,459 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:51,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:50:51,468 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:50:51,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:50:51,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1596, now seen corresponding path program 1 times [2019-11-25 08:50:51,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:50:51,469 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206443828] [2019-11-25 08:50:51,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:50:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:50:51,498 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 08:50:51,499 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206443828] [2019-11-25 08:50:51,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:50:51,500 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:50:51,501 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777807817] [2019-11-25 08:50:51,503 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:50:51,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:50:51,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:50:51,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:50:51,507 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-25 08:50:51,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:50:51,514 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-25 08:50:51,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:50:51,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-25 08:50:51,516 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:50:51,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2019-11-25 08:50:51,516 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:50:51,516 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:50:51,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:50:51,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:50:51,517 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:51,517 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:51,517 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:50:51,517 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:50:51,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:50:51,517 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:50:51,517 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:50:51,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:50:51 BoogieIcfgContainer [2019-11-25 08:50:51,523 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:50:51,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:50:51,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:50:51,524 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:50:51,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:50:50" (3/4) ... [2019-11-25 08:50:51,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:50:51,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:50:51,530 INFO L168 Benchmark]: Toolchain (without parser) took 1669.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.7 MB in the beginning and 997.6 MB in the end (delta: -52.9 MB). Peak memory consumption was 76.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:51,530 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:51,531 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:51,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.36 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 08:50:51,532 INFO L168 Benchmark]: Boogie Preprocessor took 16.97 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 08:50:51,532 INFO L168 Benchmark]: RCFGBuilder took 189.00 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:51,533 INFO L168 Benchmark]: BuchiAutomizer took 1101.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:50:51,533 INFO L168 Benchmark]: Witness Printer took 4.02 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:50:51,536 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 328.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.36 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 16.97 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 189.00 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1101.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.6 MB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.02 ms. Allocated memory is still 1.2 GB. Free memory is still 997.6 MB. 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 13 SDslu, 13 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 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...