./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB14.c -s /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:51:47,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:51:47,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:51:47,017 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:51:47,017 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:51:47,018 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:51:47,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:51:47,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:51:47,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:51:47,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:51:47,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:51:47,040 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:51:47,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:51:47,042 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:51:47,043 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:51:47,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:51:47,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:51:47,046 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:51:47,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:51:47,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:51:47,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:51:47,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:51:47,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:51:47,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:51:47,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:51:47,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:51:47,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:51:47,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:51:47,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:51:47,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:51:47,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:51:47,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:51:47,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:51:47,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:51:47,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:51:47,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:51:47,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:51:47,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:51:47,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:51:47,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:51:47,072 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:51:47,073 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-25 08:51:47,099 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:51:47,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:51:47,100 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:51:47,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:51:47,100 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:51:47,101 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:51:47,101 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:51:47,101 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:51:47,101 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:51:47,101 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:51:47,101 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:51:47,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:51:47,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:51:47,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:51:47,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:51:47,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:51:47,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:51:47,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:51:47,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:51:47,103 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:51:47,103 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:51:47,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:51:47,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:51:47,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:51:47,104 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:51:47,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:51:47,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:51:47,105 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:51:47,105 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:51:47,106 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_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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 -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2019-11-25 08:51:47,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:51:47,302 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:51:47,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:51:47,306 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:51:47,307 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:51:47,308 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-11-25 08:51:47,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/data/101a64b25/6cdf0593e87f44e9887f5c79bbf2947b/FLAG7fa50160b [2019-11-25 08:51:47,742 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:51:47,742 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-11-25 08:51:47,747 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/data/101a64b25/6cdf0593e87f44e9887f5c79bbf2947b/FLAG7fa50160b [2019-11-25 08:51:48,186 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/data/101a64b25/6cdf0593e87f44e9887f5c79bbf2947b [2019-11-25 08:51:48,188 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:51:48,190 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:51:48,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:48,191 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:51:48,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:51:48,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486f8fd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48, skipping insertion in model container [2019-11-25 08:51:48,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:51:48,234 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:51:48,415 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:48,419 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:51:48,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:48,512 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:48,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48 WrapperNode [2019-11-25 08:51:48,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:48,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:48,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:48,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:48,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:48,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:48,541 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:48,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:48,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,548 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,550 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... [2019-11-25 08:51:48,555 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:48,556 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:48,556 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:48,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:48,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:48,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:48,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:48,740 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:48,741 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:51:48,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:48 BoogieIcfgContainer [2019-11-25 08:51:48,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:48,742 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:51:48,742 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:51:48,746 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:51:48,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:48,747 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:51:48" (1/3) ... [2019-11-25 08:51:48,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e5df726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:48, skipping insertion in model container [2019-11-25 08:51:48,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:48,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:48" (2/3) ... [2019-11-25 08:51:48,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7e5df726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:51:48, skipping insertion in model container [2019-11-25 08:51:48,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:51:48,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:48" (3/3) ... [2019-11-25 08:51:48,750 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2019-11-25 08:51:48,795 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:51:48,795 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:51:48,795 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:51:48,795 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:48,796 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:48,796 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:51:48,796 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:48,797 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:51:48,811 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-25 08:51:48,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:51:48,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:48,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:48,838 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:51:48,839 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:51:48,839 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:51:48,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-25 08:51:48,840 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-25 08:51:48,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:48,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:48,841 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:51:48,841 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-25 08:51:48,849 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L12-3true [2019-11-25 08:51:48,850 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-11-25 08:51:48,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:48,855 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-25 08:51:48,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:48,864 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198208625] [2019-11-25 08:51:48,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:48,967 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:48,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:48,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-25 08:51:48,970 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:48,970 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249403634] [2019-11-25 08:51:48,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:48,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:49,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249403634] [2019-11-25 08:51:49,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:49,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-25 08:51:49,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739620351] [2019-11-25 08:51:49,044 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-25 08:51:49,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:49,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:51:49,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:49,076 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-11-25 08:51:49,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:49,102 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-25 08:51:49,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:51:49,104 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-25 08:51:49,105 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:51:49,109 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-11-25 08:51:49,110 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-25 08:51:49,110 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-25 08:51:49,111 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-11-25 08:51:49,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:51:49,111 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-25 08:51:49,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-11-25 08:51:49,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-11-25 08:51:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:51:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-11-25 08:51:49,138 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-25 08:51:49,138 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-25 08:51:49,138 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:51:49,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-11-25 08:51:49,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-25 08:51:49,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:49,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:49,139 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-25 08:51:49,139 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:51:49,139 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 27#L12-3 [2019-11-25 08:51:49,140 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-11-25 08:51:49,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,140 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-25 08:51:49,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,141 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378244236] [2019-11-25 08:51:49,141 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,154 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:49,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,155 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-11-25 08:51:49,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,156 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094743409] [2019-11-25 08:51:49,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,168 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:49,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,169 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-11-25 08:51:49,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725211781] [2019-11-25 08:51:49,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:49,254 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:49,255 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:49,255 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:49,255 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:49,255 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:51:49,255 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,256 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:49,256 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:49,256 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-11-25 08:51:49,256 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:49,257 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:49,277 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:49,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:49,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:49,417 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:49,418 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,425 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:49,425 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:49,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:49,438 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_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:49,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:49,453 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,463 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:49,463 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_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,477 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:49,478 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:49,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:51:49,502 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,529 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:51:49,531 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:49,531 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:49,532 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:49,532 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:49,532 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:51:49,532 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,532 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:49,532 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:49,532 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-11-25 08:51:49,532 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:49,532 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:49,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:49,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:49,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:49,659 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:49,664 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:49,679 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:49,681 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:49,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:49,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:49,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:49,691 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:49,691 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 [2019-11-25 08:51:49,699 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:51:49,717 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:49,718 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:49,719 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:49,719 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:49,719 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:49,722 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:49,722 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,728 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-25 08:51:49,745 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:49,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:49,748 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:49,748 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:49,748 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:49,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,752 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:49,752 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-25 08:51:49,758 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:51:49,780 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-25 08:51:49,780 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:49,785 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:51:49,785 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:51:49,785 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:51:49,786 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-25 08:51:49,790 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:51:49,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:49,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:51:49,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:49,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:49,834 INFO L255 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:51:49,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:49,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:49,890 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 [2019-11-25 08:51:49,891 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-11-25 08:51:49,929 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2019-11-25 08:51:49,929 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 [2019-11-25 08:51:49,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-25 08:51:49,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-25 08:51:49,932 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-25 08:51:49,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:49,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-25 08:51:49,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:49,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-25 08:51:49,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:49,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-11-25 08:51:49,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:51:49,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2019-11-25 08:51:49,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-25 08:51:49,937 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-25 08:51:49,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-25 08:51:49,937 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-25 08:51:49,937 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-25 08:51:49,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-25 08:51:49,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-25 08:51:49,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-25 08:51:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-25 08:51:49,939 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:51:49,939 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-25 08:51:49,939 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-25 08:51:49,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-25 08:51:49,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-25 08:51:49,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:51:49,940 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:51:49,940 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-11-25 08:51:49,941 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-25 08:51:49,941 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 80#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 77#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 78#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 76#L12-2 [2019-11-25 08:51:49,941 INFO L796 eck$LassoCheckResult]: Loop: 76#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 76#L12-2 [2019-11-25 08:51:49,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,941 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2019-11-25 08:51:49,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,942 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619520225] [2019-11-25 08:51:49,942 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,961 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:49,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,964 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-25 08:51:49,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970600025] [2019-11-25 08:51:49,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:49,978 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:49,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:49,979 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2019-11-25 08:51:49,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:49,980 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147772999] [2019-11-25 08:51:49,981 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:50,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:50,010 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:50,027 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:50,028 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:50,028 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:50,028 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:50,028 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-25 08:51:50,028 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,028 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:50,028 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:50,029 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2019-11-25 08:51:50,029 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:50,029 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:50,030 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,053 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,124 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:50,124 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:50,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:50,144 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:50,144 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_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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 [2019-11-25 08:51:50,158 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:50,158 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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 [2019-11-25 08:51:50,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:51:50,173 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:50,191 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:50,191 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=4}, {ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,197 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:50,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-25 08:51:50,202 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-25 08:51:50,202 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,213 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-25 08:51:50,216 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:50,236 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-25 08:51:50,236 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 [2019-11-25 08:51:50,244 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-25 08:51:50,246 INFO L210 LassoAnalysis]: Preferences: [2019-11-25 08:51:50,246 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-25 08:51:50,246 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-25 08:51:50,247 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-25 08:51:50,247 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-25 08:51:50,247 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,247 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-25 08:51:50,247 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-25 08:51:50,247 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2019-11-25 08:51:50,247 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-25 08:51:50,248 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-25 08:51:50,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-25 08:51:50,328 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-25 08:51:50,328 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:50,333 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:50,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:50,335 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:50,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:50,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:50,342 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:50,344 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,348 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:50,365 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:50,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:50,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:50,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:50,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:50,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:50,372 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:50,372 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,375 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:50,391 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:50,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:50,393 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:50,393 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:50,393 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:50,400 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-25 08:51:50,400 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 [2019-11-25 08:51:50,411 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_bbf9f522-444a-4660-b179-c5b9abc7cc8b/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) [2019-11-25 08:51:50,431 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-25 08:51:50,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-25 08:51:50,433 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-25 08:51:50,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-25 08:51:50,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-25 08:51:50,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-25 08:51:50,436 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-25 08:51:50,436 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 [2019-11-25 08:51:50,439 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-25 08:51:50,442 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-25 08:51:50,442 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_bbf9f522-444a-4660-b179-c5b9abc7cc8b/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-25 08:51:50,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-25 08:51:50,456 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-25 08:51:50,456 INFO L510 LassoAnalysis]: Proved termination. [2019-11-25 08:51:50,456 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-25 08:51:50,460 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-25 08:51:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:50,492 INFO L255 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-25 08:51:50,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:50,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:50,501 WARN L253 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-25 08:51:50,501 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:51:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:50,502 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-25 08:51:50,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-25 08:51:50,515 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2019-11-25 08:51:50,516 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 [2019-11-25 08:51:50,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-25 08:51:50,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-25 08:51:50,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-25 08:51:50,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:50,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-25 08:51:50,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:50,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-25 08:51:50,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-25 08:51:50,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-11-25 08:51:50,519 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:51:50,519 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-25 08:51:50,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-25 08:51:50,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-25 08:51:50,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-25 08:51:50,519 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:51:50,519 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:50,519 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:50,520 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:51:50,520 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-25 08:51:50,520 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:51:50,520 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-25 08:51:50,520 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-25 08:51:50,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:51:50 BoogieIcfgContainer [2019-11-25 08:51:50,527 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:51:50,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:50,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:50,527 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:50,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:48" (3/4) ... [2019-11-25 08:51:50,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-25 08:51:50,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:50,544 INFO L168 Benchmark]: Toolchain (without parser) took 2353.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 950.1 MB in the beginning and 914.8 MB in the end (delta: 35.3 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:50,545 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-11-25 08:51:50,550 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:50,550 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:50,551 INFO L168 Benchmark]: Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:50,552 INFO L168 Benchmark]: RCFGBuilder took 186.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:50,552 INFO L168 Benchmark]: BuchiAutomizer took 1784.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.3 MB in the end (delta: 210.0 MB). Peak memory consumption was 210.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:50,553 INFO L168 Benchmark]: Witness Printer took 14.37 ms. Allocated memory is still 1.2 GB. Free memory was 921.3 MB in the beginning and 914.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:50,562 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 322.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -195.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 186.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1784.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 921.3 MB in the end (delta: 210.0 MB). Peak memory consumption was 210.0 MB. Max. memory is 11.5 GB. * Witness Printer took 14.37 ms. Allocated memory is still 1.2 GB. Free memory was 921.3 MB in the beginning and 914.8 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 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...