./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 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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 0.1.24-678e011 [2019-11-20 05:47:54,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:47:54,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:47:54,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:47:54,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:47:54,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:47:54,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:47:54,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:47:54,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:47:54,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:47:54,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:47:54,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:47:54,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:47:54,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:47:54,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:47:54,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:47:54,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:47:54,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:47:54,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:47:54,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:47:54,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:47:54,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:47:54,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:47:54,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:47:54,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:47:54,695 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:47:54,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:47:54,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:47:54,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:47:54,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:47:54,699 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:47:54,699 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:47:54,700 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:47:54,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:47:54,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:47:54,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:47:54,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:47:54,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:47:54,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:47:54,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:47:54,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:47:54,705 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 05:47:54,730 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:47:54,739 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:47:54,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:47:54,741 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:47:54,741 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:47:54,741 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 05:47:54,741 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 05:47:54,741 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 05:47:54,742 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 05:47:54,742 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 05:47:54,742 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 05:47:54,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:47:54,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 05:47:54,743 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:47:54,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:47:54,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 05:47:54,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 05:47:54,744 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 05:47:54,744 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:47:54,745 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 05:47:54,745 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:47:54,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 05:47:54,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:47:54,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:47:54,746 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 05:47:54,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:47:54,746 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:47:54,746 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 05:47:54,748 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 05:47:54,748 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_930b1447-6756-4256-9d47-768c773e5778/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 [2019-11-20 05:47:54,880 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:47:54,890 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:47:54,893 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:47:54,894 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:47:54,894 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:47:54,895 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-20 05:47:54,952 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/data/fa72ace6e/899e7ce268a0422f9b598451c40040b0/FLAG73286e3fc [2019-11-20 05:47:55,309 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:47:55,310 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-20 05:47:55,314 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/data/fa72ace6e/899e7ce268a0422f9b598451c40040b0/FLAG73286e3fc [2019-11-20 05:47:55,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/data/fa72ace6e/899e7ce268a0422f9b598451c40040b0 [2019-11-20 05:47:55,695 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:47:55,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:47:55,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:47:55,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:47:55,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:47:55,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:55,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f1b7d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55, skipping insertion in model container [2019-11-20 05:47:55,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:55,712 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:47:55,730 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:47:55,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:47:55,879 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:47:55,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:47:55,974 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:47:55,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55 WrapperNode [2019-11-20 05:47:55,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:47:55,975 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:47:55,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:47:55,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:47:55,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:55,987 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:47:56,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:47:56,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:47:56,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:47:56,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... [2019-11-20 05:47:56,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:47:56,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:47:56,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:47:56,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:47:56,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:47:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:47:56,182 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:47:56,183 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:47:56,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:56 BoogieIcfgContainer [2019-11-20 05:47:56,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:47:56,184 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 05:47:56,184 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 05:47:56,187 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 05:47:56,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:47:56,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:47:55" (1/3) ... [2019-11-20 05:47:56,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e93b1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:47:56, skipping insertion in model container [2019-11-20 05:47:56,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:47:56,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:47:55" (2/3) ... [2019-11-20 05:47:56,189 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e93b1f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:47:56, skipping insertion in model container [2019-11-20 05:47:56,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 05:47:56,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:56" (3/3) ... [2019-11-20 05:47:56,190 INFO L371 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2019-11-20 05:47:56,226 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 05:47:56,226 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 05:47:56,226 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 05:47:56,227 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:47:56,227 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:47:56,227 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 05:47:56,227 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:47:56,227 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 05:47:56,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 05:47:56,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:47:56,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:47:56,256 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:47:56,261 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 05:47:56,261 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:47:56,261 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 05:47:56,261 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-20 05:47:56,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:47:56,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:47:56,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:47:56,263 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-20 05:47:56,263 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:47:56,269 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 6#L19-2true [2019-11-20 05:47:56,269 INFO L796 eck$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 [2019-11-20 05:47:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:56,274 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-20 05:47:56,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:56,280 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065592789] [2019-11-20 05:47:56,281 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:56,359 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:56,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:56,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-20 05:47:56,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:56,361 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319813874] [2019-11-20 05:47:56,361 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:56,370 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-20 05:47:56,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:56,373 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481177403] [2019-11-20 05:47:56,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:56,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:56,391 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:56,449 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:56,449 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:56,449 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:56,450 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:56,450 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:47:56,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:56,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:56,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-11-20 05:47:56,451 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:56,451 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:56,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,614 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:56,615 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:56,626 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:47:56,635 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:47:56,635 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_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:56,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:47:56,654 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:47:56,654 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_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:56,659 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:47:56,667 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:47:56,680 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:47:56,682 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:56,682 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:56,682 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:56,682 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:56,682 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:47:56,682 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,682 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:56,683 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:56,683 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration1_Loop [2019-11-20 05:47:56,683 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:56,683 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:56,684 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,695 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:56,768 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:56,772 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:56,778 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:47:56,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:47:56,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:47:56,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:47:56,781 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:47:56,786 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:47:56,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,792 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:47:56,810 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:47:56,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:47:56,812 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:47:56,812 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:47:56,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:47:56,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:47:56,814 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:47:56,814 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,817 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:47:56,822 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:47:56,822 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_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 05:47:56,838 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:47:56,838 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:47:56,838 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:47:56,839 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 05:47:56,843 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:56,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:56,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:56,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:47:56,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:56,890 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:56,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:56,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:56,907 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 05:47:56,909 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-20 05:47:56,961 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. [2019-11-20 05:47:56,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 05:47:56,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:47:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-20 05:47:56,965 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-20 05:47:56,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:56,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 05:47:56,966 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:56,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-20 05:47:56,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:56,968 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-20 05:47:56,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:47:56,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-20 05:47:56,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-20 05:47:56,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 05:47:56,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-20 05:47:56,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:47:56,982 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:47:56,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-20 05:47:57,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-20 05:47:57,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-20 05:47:57,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-20 05:47:57,007 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:47:57,007 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-20 05:47:57,007 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 05:47:57,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-20 05:47:57,009 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:47:57,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:47:57,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:47:57,009 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-20 05:47:57,010 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:47:57,010 INFO L794 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 64#L19-2 assume !!(main_~i~0 > 0); 69#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 65#L19-2 [2019-11-20 05:47:57,010 INFO L796 eck$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 [2019-11-20 05:47:57,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,011 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-20 05:47:57,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:57,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122597653] [2019-11-20 05:47:57,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:57,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,032 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:57,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-20 05:47:57,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:57,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74417254] [2019-11-20 05:47:57,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,051 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:57,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,052 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-11-20 05:47:57,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:57,053 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232606859] [2019-11-20 05:47:57,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:57,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,072 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:57,087 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:57,087 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:57,087 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:57,087 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:57,088 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:47:57,088 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,088 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:57,088 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:57,088 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-11-20 05:47:57,088 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:57,088 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:57,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,093 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,100 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,144 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:57,144 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,150 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:57,150 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:47:57,157 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:47:57,157 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_930b1447-6756-4256-9d47-768c773e5778/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:57,166 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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 [2019-11-20 05:47:57,182 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:47:57,182 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:47:57,198 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:47:57,200 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:57,200 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:57,200 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:57,200 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:57,201 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:47:57,201 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,201 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:57,201 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:57,201 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration2_Loop [2019-11-20 05:47:57,201 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:57,201 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:57,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,276 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:57,277 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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 [2019-11-20 05:47:57,285 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:47:57,287 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:47:57,287 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:47:57,287 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:47:57,287 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:47:57,287 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:47:57,289 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:47:57,289 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 05:47:57,293 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:47:57,295 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 05:47:57,295 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_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,310 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:47:57,310 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:47:57,310 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:47:57,311 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 05:47:57,313 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,354 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,354 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,367 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,367 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:57,367 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 05:47:57,368 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-20 05:47:57,378 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. [2019-11-20 05:47:57,379 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 [2019-11-20 05:47:57,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:47:57,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 05:47:57,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-20 05:47:57,380 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,380 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 05:47:57,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-20 05:47:57,381 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,381 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-11-20 05:47:57,382 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:47:57,382 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-11-20 05:47:57,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-20 05:47:57,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 05:47:57,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-11-20 05:47:57,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:47:57,383 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 05:47:57,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-11-20 05:47:57,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 05:47:57,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 05:47:57,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-20 05:47:57,384 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 05:47:57,384 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-20 05:47:57,384 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 05:47:57,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-11-20 05:47:57,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 05:47:57,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:47:57,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:47:57,385 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-11-20 05:47:57,385 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 05:47:57,385 INFO L794 eck$LassoCheckResult]: Stem: 116#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~N~0;havoc main_~i~0;havoc main_~j~0;havoc main_~N~0;main_~j~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~N~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~i~0 := main_~N~0; 117#L19-2 assume !!(main_~i~0 > 0); 122#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 123#L19-2 assume !!(main_~i~0 > 0); 124#L19 assume !(main_~j~0 > 0);main_~j~0 := main_~N~0;main_~i~0 := main_~i~0 - 1; 118#L19-2 [2019-11-20 05:47:57,385 INFO L796 eck$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 [2019-11-20 05:47:57,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,386 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-11-20 05:47:57,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:57,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795858773] [2019-11-20 05:47:57,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:57,443 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795858773] [2019-11-20 05:47:57,444 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784350546] [2019-11-20 05:47:57,444 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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 [2019-11-20 05:47:57,473 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:47:57,473 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:47:57,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,475 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:57,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:47:57,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2019-11-20 05:47:57,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521551537] [2019-11-20 05:47:57,510 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-11-20 05:47:57,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-11-20 05:47:57,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:57,510 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893919594] [2019-11-20 05:47:57,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:57,527 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:57,559 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:57,559 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:57,559 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:57,559 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:57,560 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:47:57,560 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,560 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:57,560 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:57,560 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-11-20 05:47:57,560 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:57,560 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:57,561 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,629 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:57,629 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:57,643 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,648 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 05:47:57,648 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_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:57,664 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:47:57,682 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,693 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:47:57,695 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:57,696 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:57,696 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:57,696 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:57,696 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:47:57,696 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,696 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:57,696 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:57,697 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration3_Loop [2019-11-20 05:47:57,697 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:57,697 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:57,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:57,765 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:57,766 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,782 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:47:57,784 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:47:57,784 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:47:57,784 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:47:57,784 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:47:57,787 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 05:47:57,787 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,793 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:47:57,809 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:47:57,810 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:47:57,810 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:47:57,810 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:47:57,810 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:47:57,812 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:47:57,812 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:47:57,819 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 05:47:57,819 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_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:57,842 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:47:57,842 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:47:57,842 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:47:57,842 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2019-11-20 05:47:57,844 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,869 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,874 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,875 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:57,875 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-20 05:47:57,875 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 05:47:57,886 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. [2019-11-20 05:47:57,887 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 [2019-11-20 05:47:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:47:57,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 05:47:57,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 05:47:57,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,888 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 05:47:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,919 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:57,920 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 [2019-11-20 05:47:57,920 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 05:47:57,928 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. [2019-11-20 05:47:57,929 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 [2019-11-20 05:47:57,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:47:57,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-11-20 05:47:57,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 05:47:57,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,930 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 05:47:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:57,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,951 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:57,965 WARN L253 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:57,965 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:57,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:57,966 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 [2019-11-20 05:47:57,966 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 05:47:57,976 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. [2019-11-20 05:47:57,977 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 [2019-11-20 05:47:57,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 05:47:57,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-20 05:47:57,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 05:47:57,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 05:47:57,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 05:47:57,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:57,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-11-20 05:47:57,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 05:47:57,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-11-20 05:47:57,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 05:47:57,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-20 05:47:57,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-11-20 05:47:57,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:47:57,982 INFO L688 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-11-20 05:47:57,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-11-20 05:47:57,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-11-20 05:47:57,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-20 05:47:57,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-11-20 05:47:57,983 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-11-20 05:47:57,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:47:57,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-20 05:47:57,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-11-20 05:47:57,990 INFO L87 Difference]: Start difference. First operand 5 states and 7 transitions. Second operand 7 states. [2019-11-20 05:47:58,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:47:58,046 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2019-11-20 05:47:58,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:47:58,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-11-20 05:47:58,047 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2019-11-20 05:47:58,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 13 transitions. [2019-11-20 05:47:58,048 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-11-20 05:47:58,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-20 05:47:58,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2019-11-20 05:47:58,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 05:47:58,048 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2019-11-20 05:47:58,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2019-11-20 05:47:58,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 6. [2019-11-20 05:47:58,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-11-20 05:47:58,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2019-11-20 05:47:58,050 INFO L711 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-20 05:47:58,050 INFO L591 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2019-11-20 05:47:58,050 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 05:47:58,050 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2019-11-20 05:47:58,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-20 05:47:58,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 05:47:58,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 05:47:58,051 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-20 05:47:58,051 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-11-20 05:47:58,051 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 [2019-11-20 05:47:58,051 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 [2019-11-20 05:47:58,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:58,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-20 05:47:58,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:58,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524199866] [2019-11-20 05:47:58,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:58,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:58,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:58,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1380409, now seen corresponding path program 1 times [2019-11-20 05:47:58,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:58,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115154397] [2019-11-20 05:47:58,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:58,069 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:58,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2019-11-20 05:47:58,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:47:58,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791715626] [2019-11-20 05:47:58,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:47:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 05:47:58,082 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 05:47:58,110 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:58,110 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:58,110 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:58,110 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:58,110 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 05:47:58,110 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:58,110 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:58,110 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:58,111 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-11-20 05:47:58,111 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:58,111 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:58,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,215 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:58,216 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:58,228 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 05:47:58,228 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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 [2019-11-20 05:47:58,259 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 05:47:58,259 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 05:47:58,317 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 05:47:58,319 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 05:47:58,319 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 05:47:58,319 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 05:47:58,319 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 05:47:58,319 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 05:47:58,319 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:58,319 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 05:47:58,319 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 05:47:58,319 INFO L133 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-cousot9.c_Iteration4_Loop [2019-11-20 05:47:58,319 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 05:47:58,320 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 05:47:58,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,333 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 05:47:58,398 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 05:47:58,398 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_930b1447-6756-4256-9d47-768c773e5778/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) [2019-11-20 05:47:58,406 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 05:47:58,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 05:47:58,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 05:47:58,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 05:47:58,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 05:47:58,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 05:47:58,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 05:47:58,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 05:47:58,417 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 05:47:58,421 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-20 05:47:58,422 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_930b1447-6756-4256-9d47-768c773e5778/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 [2019-11-20 05:47:58,425 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 05:47:58,425 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 05:47:58,425 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 05:47:58,425 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-20 05:47:58,426 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 05:47:58,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:47:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:58,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 05:47:58,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:47:58,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 05:47:58,455 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:47:58,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:47:58,477 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 [2019-11-20 05:47:58,477 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 4 states. [2019-11-20 05:47:58,494 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. [2019-11-20 05:47:58,496 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 [2019-11-20 05:47:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 05:47:58,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-20 05:47:58,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-11-20 05:47:58,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:58,497 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-20 05:47:58,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:58,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 8 letters. [2019-11-20 05:47:58,498 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 05:47:58,498 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2019-11-20 05:47:58,499 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:47:58,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2019-11-20 05:47:58,499 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 05:47:58,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 05:47:58,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 05:47:58,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 05:47:58,499 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:47:58,500 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:47:58,500 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:47:58,500 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 05:47:58,500 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:47:58,500 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 05:47:58,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 05:47:58,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:47:58 BoogieIcfgContainer [2019-11-20 05:47:58,508 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 05:47:58,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:47:58,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:47:58,509 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:47:58,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:47:56" (3/4) ... [2019-11-20 05:47:58,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 05:47:58,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:47:58,515 INFO L168 Benchmark]: Toolchain (without parser) took 2817.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -201.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:47:58,515 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:47:58,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -248.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:47:58,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:47:58,516 INFO L168 Benchmark]: Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:47:58,517 INFO L168 Benchmark]: RCFGBuilder took 166.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2019-11-20 05:47:58,520 INFO L168 Benchmark]: BuchiAutomizer took 2323.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:47:58,520 INFO L168 Benchmark]: Witness Printer took 4.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:47:58,527 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 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 198.7 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -248.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.53 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 166.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2323.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 2.2s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...