./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 10:54:24,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 10:54:24,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 10:54:24,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 10:54:24,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 10:54:24,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 10:54:24,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 10:54:24,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 10:54:24,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 10:54:24,739 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 10:54:24,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 10:54:24,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 10:54:24,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 10:54:24,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 10:54:24,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 10:54:24,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 10:54:24,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 10:54:24,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 10:54:24,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 10:54:24,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 10:54:24,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 10:54:24,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 10:54:24,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 10:54:24,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 10:54:24,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 10:54:24,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 10:54:24,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 10:54:24,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 10:54:24,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 10:54:24,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 10:54:24,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 10:54:24,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 10:54:24,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 10:54:24,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 10:54:24,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 10:54:24,756 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 10:54:24,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 10:54:24,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 10:54:24,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 10:54:24,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 10:54:24,757 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 10:54:24,758 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-12-07 10:54:24,769 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 10:54:24,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 10:54:24,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 10:54:24,770 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 10:54:24,770 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 10:54:24,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 10:54:24,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 10:54:24,772 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 10:54:24,772 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 10:54:24,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 10:54:24,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 10:54:24,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 10:54:24,772 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 10:54:24,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 10:54:24,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 10:54:24,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 10:54:24,773 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 10:54:24,773 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 10:54:24,774 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_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2019-12-07 10:54:24,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 10:54:24,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 10:54:24,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 10:54:24,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 10:54:24,885 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 10:54:24,886 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-12-07 10:54:24,921 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/data/dfdf68a51/e18d9f642da64a4fb471f5b8771e350b/FLAG24c56b47a [2019-12-07 10:54:25,335 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 10:54:25,336 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-12-07 10:54:25,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/data/dfdf68a51/e18d9f642da64a4fb471f5b8771e350b/FLAG24c56b47a [2019-12-07 10:54:25,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/data/dfdf68a51/e18d9f642da64a4fb471f5b8771e350b [2019-12-07 10:54:25,351 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 10:54:25,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 10:54:25,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 10:54:25,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 10:54:25,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 10:54:25,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd1212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25, skipping insertion in model container [2019-12-07 10:54:25,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 10:54:25,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 10:54:25,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:54:25,472 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 10:54:25,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 10:54:25,527 INFO L208 MainTranslator]: Completed translation [2019-12-07 10:54:25,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25 WrapperNode [2019-12-07 10:54:25,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 10:54:25,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 10:54:25,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 10:54:25,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 10:54:25,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,547 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 10:54:25,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 10:54:25,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 10:54:25,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 10:54:25,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,555 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... [2019-12-07 10:54:25,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 10:54:25,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 10:54:25,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 10:54:25,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 10:54:25,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:25,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 10:54:25,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 10:54:25,681 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 10:54:25,681 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-12-07 10:54:25,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:54:25 BoogieIcfgContainer [2019-12-07 10:54:25,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 10:54:25,683 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 10:54:25,683 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 10:54:25,685 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 10:54:25,686 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:54:25,686 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 10:54:25" (1/3) ... [2019-12-07 10:54:25,687 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1df5cfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:54:25, skipping insertion in model container [2019-12-07 10:54:25,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:54:25,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 10:54:25" (2/3) ... [2019-12-07 10:54:25,687 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1df5cfaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 10:54:25, skipping insertion in model container [2019-12-07 10:54:25,687 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 10:54:25,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:54:25" (3/3) ... [2019-12-07 10:54:25,688 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-12-07 10:54:25,718 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 10:54:25,718 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 10:54:25,718 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 10:54:25,718 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 10:54:25,718 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 10:54:25,718 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 10:54:25,718 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 10:54:25,718 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 10:54:25,728 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 10:54:25,742 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:54:25,742 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:54:25,742 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:54:25,746 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 10:54:25,746 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:54:25,747 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 10:54:25,747 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-12-07 10:54:25,747 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:54:25,747 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:54:25,747 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:54:25,748 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-12-07 10:54:25,748 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:54:25,753 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 6#L19-2true [2019-12-07 10:54:25,753 INFO L796 eck$LassoCheckResult]: Loop: 6#L19-2true assume !!(main_~i~0 > 0); 8#L19true assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 6#L19-2true [2019-12-07 10:54:25,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:25,757 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-12-07 10:54:25,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:25,763 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170302476] [2019-12-07 10:54:25,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:25,829 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:25,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:25,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-12-07 10:54:25,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:25,830 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611061855] [2019-12-07 10:54:25,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:25,840 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:25,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:25,841 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-12-07 10:54:25,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:25,841 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697396146] [2019-12-07 10:54:25,841 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:25,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:25,853 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:25,888 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:25,888 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:25,888 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:25,889 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:25,889 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:54:25,889 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:25,889 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:25,889 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:25,889 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-12-07 10:54:25,889 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:25,890 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:25,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:25,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:25,917 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:25,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:25,978 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:25,978 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:25,983 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:25,983 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:25,990 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:54:25,990 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_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:25,994 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:25,994 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:25,998 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:54:25,998 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_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:26,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:26,002 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:26,010 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:54:26,010 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:26,019 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:54:26,020 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,020 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,021 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,021 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,021 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:54:26,021 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,021 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,021 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,021 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-12-07 10:54:26,021 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,021 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,023 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,065 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,068 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:26,072 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 [2019-12-07 10:54:26,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:54:26,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:54:26,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:54:26,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:54:26,078 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:54:26,078 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:54:26,082 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,086 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 [2019-12-07 10:54:26,087 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:54:26,087 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:54:26,088 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:54:26,088 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:54:26,088 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:54:26,089 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:54:26,089 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:54:26,093 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:54:26,097 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:54:26,097 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,101 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:54:26,101 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:54:26,101 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:54:26,102 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-12-07 10:54:26,105 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:54:26,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,133 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,133 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,146 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 [2019-12-07 10:54:26,147 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-12-07 10:54:26,173 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2019-12-07 10:54:26,174 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 [2019-12-07 10:54:26,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:54:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-12-07 10:54:26,176 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-12-07 10:54:26,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 10:54:26,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-12-07 10:54:26,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,178 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-12-07 10:54:26,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:54:26,183 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-12-07 10:54:26,183 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-12-07 10:54:26,184 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 10:54:26,184 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-12-07 10:54:26,184 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:54:26,184 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 10:54:26,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-12-07 10:54:26,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 10:54:26,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 10:54:26,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-12-07 10:54:26,202 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 10:54:26,202 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-12-07 10:54:26,202 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 10:54:26,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-12-07 10:54:26,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:54:26,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:54:26,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:54:26,203 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 10:54:26,203 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:54:26,203 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 64#L19-2 assume !!(main_~i~0 > 0); 69#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 65#L19-2 [2019-12-07 10:54:26,203 INFO L796 eck$LassoCheckResult]: Loop: 65#L19-2 assume !!(main_~i~0 > 0); 66#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 65#L19-2 [2019-12-07 10:54:26,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,203 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-12-07 10:54:26,203 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,204 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841794085] [2019-12-07 10:54:26,204 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,212 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-12-07 10:54:26,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321217388] [2019-12-07 10:54:26,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,218 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,219 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-12-07 10:54:26,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,219 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713519141] [2019-12-07 10:54:26,219 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,246 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,246 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,246 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:54:26,246 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,246 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,246 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,246 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-12-07 10:54:26,246 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,246 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,283 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,283 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,287 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:26,287 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:26,291 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:54:26,291 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/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 [2019-12-07 10:54:26,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:26,295 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:54:26,302 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:26,308 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:54:26,309 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,309 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,309 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,309 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,309 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:54:26,309 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,309 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,309 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,309 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-12-07 10:54:26,310 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,310 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,347 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,347 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,350 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 [2019-12-07 10:54:26,352 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:54:26,352 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:54:26,352 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:54:26,352 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:54:26,352 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:54:26,353 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:54:26,353 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:54:26,355 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:54:26,357 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 10:54:26,357 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_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,368 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:54:26,368 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:54:26,368 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:54:26,368 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-12-07 10:54:26,370 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:54:26,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,389 INFO L264 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,390 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,393 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,394 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,394 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 [2019-12-07 10:54:26,395 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-12-07 10:54:26,402 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-12-07 10:54:26,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:54:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:54:26,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 10:54:26,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-12-07 10:54:26,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 10:54:26,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,403 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-12-07 10:54:26,404 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,404 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-12-07 10:54:26,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:54:26,405 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 10:54:26,405 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-12-07 10:54:26,405 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 10:54:26,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-12-07 10:54:26,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:54:26,405 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 10:54:26,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-12-07 10:54:26,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-12-07 10:54:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-12-07 10:54:26,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-12-07 10:54:26,407 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 10:54:26,407 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-12-07 10:54:26,407 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-12-07 10:54:26,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-12-07 10:54:26,408 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-12-07 10:54:26,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:54:26,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:54:26,408 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-12-07 10:54:26,408 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-12-07 10:54:26,408 INFO L794 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 117#L19-2 assume !!(main_~i~0 > 0); 122#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 123#L19-2 assume !!(main_~i~0 > 0); 124#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 118#L19-2 [2019-12-07 10:54:26,408 INFO L796 eck$LassoCheckResult]: Loop: 118#L19-2 assume !!(main_~i~0 > 0); 119#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 118#L19-2 [2019-12-07 10:54:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,409 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-12-07 10:54:26,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668306279] [2019-12-07 10:54:26,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,456 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668306279] [2019-12-07 10:54:26,457 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524924835] [2019-12-07 10:54:26,457 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 10:54:26,475 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-12-07 10:54:26,475 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-12-07 10:54:26,475 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,476 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,494 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 10:54:26,494 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-12-07 10:54:26,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679925938] [2019-12-07 10:54:26,497 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-12-07 10:54:26,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-12-07 10:54:26,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,498 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739505645] [2019-12-07 10:54:26,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,502 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,512 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,512 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,512 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,512 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,513 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:54:26,513 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,513 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,513 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,513 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-12-07 10:54:26,513 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,513 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,514 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,550 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,551 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:26,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:26,557 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-12-07 10:54:26,557 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,563 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:26,563 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:54:26,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:26,575 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:54:26,576 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,576 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,576 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,576 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,576 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:54:26,576 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,577 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,577 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,577 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-12-07 10:54:26,577 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,577 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,616 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,616 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,619 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 [2019-12-07 10:54:26,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:54:26,620 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:54:26,620 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:54:26,620 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:54:26,623 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-12-07 10:54:26,623 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-12-07 10:54:26,626 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,630 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 [2019-12-07 10:54:26,632 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:54:26,632 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:54:26,632 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:54:26,632 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:54:26,632 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:54:26,633 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:54:26,633 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:54:26,635 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:54:26,638 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-12-07 10:54:26,638 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,641 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:54:26,641 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:54:26,641 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:54:26,641 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-12-07 10:54:26,643 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:54:26,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,658 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,658 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,662 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,662 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,662 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 [2019-12-07 10:54:26,662 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 10:54:26,668 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-12-07 10:54:26,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:54:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:54:26,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 10:54:26,669 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 10:54:26,669 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,669 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 10:54:26,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,684 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,684 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,687 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,688 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,689 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 10:54:26,689 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 10:54:26,694 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-12-07 10:54:26,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:54:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:54:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-12-07 10:54:26,695 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 10:54:26,695 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,695 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-12-07 10:54:26,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,710 INFO L264 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,710 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,715 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,715 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,716 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-12-07 10:54:26,716 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-12-07 10:54:26,722 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2019-12-07 10:54:26,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-12-07 10:54:26,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-12-07 10:54:26,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-12-07 10:54:26,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-12-07 10:54:26,723 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,723 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-12-07 10:54:26,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-12-07 10:54:26,724 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:26,724 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-12-07 10:54:26,725 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 10:54:26,725 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-12-07 10:54:26,725 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 10:54:26,726 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-12-07 10:54:26,726 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-12-07 10:54:26,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:54:26,726 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-12-07 10:54:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-12-07 10:54:26,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-12-07 10:54:26,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-12-07 10:54:26,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-12-07 10:54:26,727 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-12-07 10:54:26,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 10:54:26,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 10:54:26,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-12-07 10:54:26,730 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 7 states. [2019-12-07 10:54:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 10:54:26,763 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2019-12-07 10:54:26,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 10:54:26,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-12-07 10:54:26,764 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-12-07 10:54:26,765 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 13 transitions. [2019-12-07 10:54:26,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-12-07 10:54:26,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-12-07 10:54:26,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-12-07 10:54:26,765 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-12-07 10:54:26,765 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-12-07 10:54:26,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-12-07 10:54:26,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 6. [2019-12-07 10:54:26,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 10:54:26,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-12-07 10:54:26,766 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 10:54:26,766 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-12-07 10:54:26,767 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-12-07 10:54:26,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-12-07 10:54:26,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-12-07 10:54:26,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 10:54:26,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 10:54:26,767 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 10:54:26,767 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-12-07 10:54:26,768 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 296#L19-2 assume !!(main_~i~0 > 0); 300#L19 [2019-12-07 10:54:26,768 INFO L796 eck$LassoCheckResult]: Loop: 300#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 297#L19-2 assume !!(main_~i~0 > 0); 298#L19 assume main_~j~0 > 0;main_~j~0 := main_~j~0 - 1; 299#L19-2 assume !!(main_~i~0 > 0); 300#L19 [2019-12-07 10:54:26,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-12-07 10:54:26,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537253608] [2019-12-07 10:54:26,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,772 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2019-12-07 10:54:26,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,773 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950222012] [2019-12-07 10:54:26,773 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,779 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,779 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2019-12-07 10:54:26,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 10:54:26,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873012209] [2019-12-07 10:54:26,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 10:54:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 10:54:26,788 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 10:54:26,806 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,806 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,806 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,807 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,807 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-12-07 10:54:26,807 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,807 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,807 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,807 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-12-07 10:54:26,807 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,807 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,860 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,860 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,862 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-12-07 10:54:26,862 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,868 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-12-07 10:54:26,868 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-12-07 10:54:26,911 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-12-07 10:54:26,912 INFO L210 LassoAnalysis]: Preferences: [2019-12-07 10:54:26,912 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-12-07 10:54:26,912 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-12-07 10:54:26,912 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-12-07 10:54:26,912 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-12-07 10:54:26,912 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,912 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-12-07 10:54:26,912 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-12-07 10:54:26,912 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-12-07 10:54:26,913 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-12-07 10:54:26,913 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-12-07 10:54:26,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,918 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,920 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,924 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-12-07 10:54:26,953 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-12-07 10:54:26,953 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,956 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 [2019-12-07 10:54:26,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-12-07 10:54:26,957 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-12-07 10:54:26,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-12-07 10:54:26,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-12-07 10:54:26,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-12-07 10:54:26,958 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-12-07 10:54:26,958 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-12-07 10:54:26,960 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-12-07 10:54:26,962 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-12-07 10:54:26,962 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_dff34301-c8e2-4fd1-b3d7-a2c7d9dcd6df/bin/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 10:54:26,964 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-12-07 10:54:26,964 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-12-07 10:54:26,965 INFO L510 LassoAnalysis]: Proved termination. [2019-12-07 10:54:26,965 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-12-07 10:54:26,966 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-12-07 10:54:26,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 10:54:26,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,976 INFO L264 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,977 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 10:54:26,980 INFO L264 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 10:54:26,980 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 10:54:26,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 10:54:26,993 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-12-07 10:54:26,994 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 4 states. [2019-12-07 10:54:27,003 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 24 transitions. Complement of second has 6 states. [2019-12-07 10:54:27,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-12-07 10:54:27,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-12-07 10:54:27,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-12-07 10:54:27,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-12-07 10:54:27,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:27,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-12-07 10:54:27,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:27,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2019-12-07 10:54:27,004 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-12-07 10:54:27,004 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-12-07 10:54:27,005 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:54:27,005 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-12-07 10:54:27,005 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-12-07 10:54:27,005 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-12-07 10:54:27,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-12-07 10:54:27,005 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 10:54:27,006 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:54:27,006 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:54:27,006 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 10:54:27,006 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-12-07 10:54:27,006 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-12-07 10:54:27,006 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-12-07 10:54:27,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-12-07 10:54:27,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 10:54:27 BoogieIcfgContainer [2019-12-07 10:54:27,010 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 10:54:27,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 10:54:27,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 10:54:27,011 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 10:54:27,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 10:54:25" (3/4) ... [2019-12-07 10:54:27,013 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-12-07 10:54:27,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 10:54:27,014 INFO L168 Benchmark]: Toolchain (without parser) took 1662.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 943.4 MB in the beginning and 1.0 GB in the end (delta: -106.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:54:27,015 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 959.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:54:27,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:54:27,015 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:54:27,016 INFO L168 Benchmark]: Boogie Preprocessor took 11.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:54:27,016 INFO L168 Benchmark]: RCFGBuilder took 123.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-12-07 10:54:27,016 INFO L168 Benchmark]: BuchiAutomizer took 1327.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2019-12-07 10:54:27,017 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 10:54:27,019 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 959.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 174.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.69 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.59 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.33 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1327.20 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 ms. Allocated memory is still 1.1 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 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function j and consists of 4 locations. One deterministic module has affine ranking function j and consists of 3 locations. One deterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 31 SDtfs, 32 SDslu, 10 SDs, 0 SdLazy, 40 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT3 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax181 hnf99 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...