./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 d74da2e3412ebf25201dbb4db5374c4c67ab19bd .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:58:21,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:58:21,220 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:58:21,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:58:21,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:58:21,240 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:58:21,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:58:21,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:58:21,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:58:21,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:58:21,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:58:21,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:58:21,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:58:21,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:58:21,272 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:58:21,274 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:58:21,275 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:58:21,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:58:21,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:58:21,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:58:21,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:58:21,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:58:21,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:58:21,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:58:21,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:58:21,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:58:21,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:58:21,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:58:21,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:58:21,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:58:21,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:58:21,304 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:58:21,305 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:58:21,306 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:58:21,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:58:21,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:58:21,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:58:21,310 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:58:21,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:58:21,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:58:21,312 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:58:21,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-15 22:58:21,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:58:21,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:58:21,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:58:21,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:58:21,340 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:58:21,341 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-15 22:58:21,341 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-15 22:58:21,341 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-15 22:58:21,342 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-15 22:58:21,342 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-15 22:58:21,342 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-15 22:58:21,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:58:21,343 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-15 22:58:21,343 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:58:21,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:58:21,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-15 22:58:21,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-15 22:58:21,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-15 22:58:21,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:58:21,345 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-15 22:58:21,345 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:58:21,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-15 22:58:21,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:58:21,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:58:21,347 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-15 22:58:21,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:58:21,347 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:58:21,348 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-15 22:58:21,349 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-15 22:58:21,349 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_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 -> d74da2e3412ebf25201dbb4db5374c4c67ab19bd [2019-11-15 22:58:21,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:58:21,412 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:58:21,417 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:58:21,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:58:21,420 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:58:21,422 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaC3.c [2019-11-15 22:58:21,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/data/a84581031/43665cb7324548989b9422e231c72a05/FLAG711676c14 [2019-11-15 22:58:21,995 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:58:21,995 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/sv-benchmarks/c/termination-restricted-15/PastaC3.c [2019-11-15 22:58:22,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/data/a84581031/43665cb7324548989b9422e231c72a05/FLAG711676c14 [2019-11-15 22:58:22,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/data/a84581031/43665cb7324548989b9422e231c72a05 [2019-11-15 22:58:22,352 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:58:22,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:58:22,355 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:58:22,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:58:22,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:58:22,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e8d2690 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22, skipping insertion in model container [2019-11-15 22:58:22,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,372 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:58:22,387 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:58:22,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:58:22,624 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:58:22,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:58:22,743 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:58:22,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22 WrapperNode [2019-11-15 22:58:22,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:58:22,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:58:22,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:58:22,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:58:22,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:58:22,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:58:22,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:58:22,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:58:22,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... [2019-11-15 22:58:22,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:58:22,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:58:22,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:58:22,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:58:22,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:22,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:58:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:58:23,060 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:58:23,060 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-15 22:58:23,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:58:23 BoogieIcfgContainer [2019-11-15 22:58:23,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:58:23,062 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-15 22:58:23,063 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-15 22:58:23,067 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-15 22:58:23,068 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:58:23,068 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.11 10:58:22" (1/3) ... [2019-11-15 22:58:23,070 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a4cdfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:58:23, skipping insertion in model container [2019-11-15 22:58:23,071 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:58:23,071 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:58:22" (2/3) ... [2019-11-15 22:58:23,072 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@54a4cdfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.11 10:58:23, skipping insertion in model container [2019-11-15 22:58:23,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-15 22:58:23,072 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:58:23" (3/3) ... [2019-11-15 22:58:23,074 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaC3.c [2019-11-15 22:58:23,134 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-15 22:58:23,134 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-15 22:58:23,135 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-15 22:58:23,135 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:58:23,135 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:58:23,135 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-15 22:58:23,135 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:58:23,136 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-15 22:58:23,157 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 22:58:23,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:23,185 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:58:23,185 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:58:23,193 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 22:58:23,193 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:58:23,193 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-15 22:58:23,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-15 22:58:23,195 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:23,195 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:58:23,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:58:23,195 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-15 22:58:23,196 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:58:23,205 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L14-2true [2019-11-15 22:58:23,205 INFO L793 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~x~0 < main_~y~0); 9#L14true assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 6#L14-2true [2019-11-15 22:58:23,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:23,212 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-15 22:58:23,223 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:23,223 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119660020] [2019-11-15 22:58:23,224 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:23,224 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:23,224 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:23,342 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:23,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:23,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-15 22:58:23,343 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:23,343 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341767775] [2019-11-15 22:58:23,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:23,344 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:23,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:23,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:23,359 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:23,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:23,361 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-15 22:58:23,361 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:23,361 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283248272] [2019-11-15 22:58:23,362 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:23,362 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:23,362 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:23,379 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:23,446 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:23,447 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:23,447 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:23,447 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:23,448 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:58:23,448 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:23,448 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:23,448 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:23,449 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2019-11-15 22:58:23,449 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:23,449 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:23,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:23,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:23,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:23,628 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:23,629 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:23,642 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:23,643 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:58:23,658 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:58:23,658 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_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:23,667 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:23,668 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:58:23,689 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:58:23,690 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_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:23,705 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:23,705 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:23,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:58:23,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:58:23,910 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:58:23,912 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:23,912 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:23,912 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:23,913 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:23,913 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:58:23,913 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:23,913 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:23,913 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:23,913 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration1_Loop [2019-11-15 22:58:23,913 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:23,914 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:23,916 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:23,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:23,942 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,056 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:24,063 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:58:24,065 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 [2019-11-15 22:58:24,068 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:24,069 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:24,070 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:24,070 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:24,086 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:58:24,086 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:58:24,107 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:58:24,113 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 [2019-11-15 22:58:24,116 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:24,119 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:24,119 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:24,119 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:24,123 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:58:24,127 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:58:24,137 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:58:24,153 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 [2019-11-15 22:58:24,155 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:24,155 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:58:24,156 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:24,156 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:24,156 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:24,157 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:58:24,158 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:58:24,182 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:58:24,200 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-15 22:58:24,200 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:58:24,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:58:24,208 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:58:24,209 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:58:24,210 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-11-15 22:58:24,214 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:58:24,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:24,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:58:24,268 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:24,280 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:58:24,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:24,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:58:24,304 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 [2019-11-15 22:58:24,305 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-15 22:58:24,360 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. [2019-11-15 22:58:24,361 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 [2019-11-15 22:58:24,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:58:24,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2019-11-15 22:58:24,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-15 22:58:24,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:24,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 22:58:24,367 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:24,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-15 22:58:24,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:24,369 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2019-11-15 22:58:24,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:24,377 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2019-11-15 22:58:24,378 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-15 22:58:24,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-15 22:58:24,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-11-15 22:58:24,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:58:24,380 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 22:58:24,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-11-15 22:58:24,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-11-15 22:58:24,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-15 22:58:24,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-15 22:58:24,411 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 22:58:24,411 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-15 22:58:24,411 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-15 22:58:24,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-15 22:58:24,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:24,413 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:58:24,413 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:58:24,413 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-15 22:58:24,413 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:58:24,414 INFO L791 eck$LassoCheckResult]: Stem: 63#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 64#L14-2 assume !!(main_~x~0 < main_~y~0); 69#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 65#L14-2 [2019-11-15 22:58:24,414 INFO L793 eck$LassoCheckResult]: Loop: 65#L14-2 assume !!(main_~x~0 < main_~y~0); 66#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 65#L14-2 [2019-11-15 22:58:24,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:24,415 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-11-15 22:58:24,415 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:24,415 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845220102] [2019-11-15 22:58:24,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:24,416 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:24,416 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:24,429 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:24,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:24,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-11-15 22:58:24,430 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:24,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978262960] [2019-11-15 22:58:24,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:24,431 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:24,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:24,440 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:24,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:24,441 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-11-15 22:58:24,441 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:24,441 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336142944] [2019-11-15 22:58:24,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:24,442 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:24,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:24,456 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:24,487 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:24,487 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:24,488 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:24,488 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:24,488 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:58:24,488 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:24,488 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:24,488 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:24,488 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2019-11-15 22:58:24,489 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:24,489 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:24,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,564 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:24,565 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:24,569 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:24,569 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:58:24,578 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:58:24,578 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_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:24,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:24,594 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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) [2019-11-15 22:58:24,627 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:58:24,627 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:24,830 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:58:24,832 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:24,833 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:24,833 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:24,833 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:24,833 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:58:24,833 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:24,834 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:24,834 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:24,835 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration2_Loop [2019-11-15 22:58:24,835 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:24,835 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:24,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:24,943 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:24,943 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:58:24,944 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 [2019-11-15 22:58:24,945 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:24,945 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:58:24,946 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:24,946 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:24,946 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:24,947 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:58:24,947 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:58:24,955 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:58:24,963 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:58:24,963 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-11-15 22:58:24,964 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:58:24,965 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:58:24,965 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:58:24,965 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-11-15 22:58:24,966 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:58:24,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:25,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:58:25,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:25,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:25,008 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:58:25,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:25,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:58:25,026 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 22:58:25,027 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-11-15 22:58:25,045 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 4 states. [2019-11-15 22:58:25,045 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 [2019-11-15 22:58:25,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:58:25,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 22:58:25,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-15 22:58:25,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:25,047 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-15 22:58:25,047 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:25,048 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-15 22:58:25,048 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:25,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-11-15 22:58:25,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:25,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2019-11-15 22:58:25,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-11-15 22:58:25,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-15 22:58:25,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2019-11-15 22:58:25,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:58:25,051 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-11-15 22:58:25,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2019-11-15 22:58:25,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-15 22:58:25,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-15 22:58:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-11-15 22:58:25,053 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-15 22:58:25,054 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-11-15 22:58:25,054 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-15 22:58:25,054 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-11-15 22:58:25,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:25,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:58:25,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:58:25,055 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-11-15 22:58:25,056 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:58:25,056 INFO L791 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 118#L14-2 assume !!(main_~x~0 < main_~y~0); 123#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 124#L14-2 assume !!(main_~x~0 < main_~y~0); 120#L14 [2019-11-15 22:58:25,056 INFO L793 eck$LassoCheckResult]: Loop: 120#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 119#L14-2 assume !!(main_~x~0 < main_~y~0); 120#L14 [2019-11-15 22:58:25,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,056 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 2 times [2019-11-15 22:58:25,057 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:25,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659274243] [2019-11-15 22:58:25,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,057 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,069 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:25,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-11-15 22:58:25,070 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:25,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639919731] [2019-11-15 22:58:25,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,070 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,079 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:25,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,079 INFO L82 PathProgramCache]: Analyzing trace with hash 925824992, now seen corresponding path program 3 times [2019-11-15 22:58:25,080 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:25,080 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023418983] [2019-11-15 22:58:25,080 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,080 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,093 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:25,122 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:25,123 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:25,123 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:25,123 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:25,123 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:58:25,123 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:25,123 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:25,124 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:25,124 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2019-11-15 22:58:25,124 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:25,124 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:25,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,205 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:25,206 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-15 22:58:25,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:25,218 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:25,223 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-15 22:58:25,223 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_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:25,230 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:25,230 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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 [2019-11-15 22:58:25,248 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:58:25,248 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-15 22:58:25,570 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:58:25,572 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:25,573 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:25,573 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:25,573 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:25,573 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:58:25,573 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:25,573 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:25,573 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:25,573 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration3_Loop [2019-11-15 22:58:25,573 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:25,574 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:25,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,595 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,662 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:25,662 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:58:25,663 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 [2019-11-15 22:58:25,664 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:25,664 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:25,665 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:25,665 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:25,667 INFO L400 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-15 22:58:25,667 INFO L401 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-15 22:58:25,682 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-15 22:58:25,689 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 [2019-11-15 22:58:25,690 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:25,691 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:58:25,692 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:25,692 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:25,692 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:25,693 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:58:25,693 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:58:25,699 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:58:25,722 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:58:25,733 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:58:25,734 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:58:25,734 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:58:25,734 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:58:25,734 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~z~0 + 1 Supporting invariants [] [2019-11-15 22:58:25,735 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:58:25,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:25,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:58:25,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:25,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:25,784 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:58:25,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:25,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:58:25,838 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 22:58:25,838 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-15 22:58:25,858 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 20 states and 29 transitions. Complement of second has 5 states. [2019-11-15 22:58:25,860 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 [2019-11-15 22:58:25,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:58:25,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-15 22:58:25,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-15 22:58:25,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:25,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 22:58:25,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:25,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 4 letters. [2019-11-15 22:58:25,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:25,862 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 29 transitions. [2019-11-15 22:58:25,864 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:25,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 17 states and 24 transitions. [2019-11-15 22:58:25,869 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2019-11-15 22:58:25,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-11-15 22:58:25,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 24 transitions. [2019-11-15 22:58:25,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-15 22:58:25,870 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 24 transitions. [2019-11-15 22:58:25,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 24 transitions. [2019-11-15 22:58:25,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-11-15 22:58:25,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-15 22:58:25,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2019-11-15 22:58:25,876 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-11-15 22:58:25,876 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 21 transitions. [2019-11-15 22:58:25,877 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-15 22:58:25,877 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 21 transitions. [2019-11-15 22:58:25,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-15 22:58:25,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-15 22:58:25,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-15 22:58:25,881 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [3, 1, 1, 1] [2019-11-15 22:58:25,882 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-15 22:58:25,882 INFO L791 eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L14-2 assume !!(main_~x~0 < main_~y~0); 193#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 194#L14-2 assume !!(main_~x~0 < main_~y~0); 199#L14 assume main_~x~0 < main_~z~0;main_~x~0 := 1 + main_~x~0; 200#L14-2 assume !!(main_~x~0 < main_~y~0); 190#L14 [2019-11-15 22:58:25,882 INFO L793 eck$LassoCheckResult]: Loop: 190#L14 assume !(main_~x~0 < main_~z~0);main_~z~0 := 1 + main_~z~0; 189#L14-2 assume !!(main_~x~0 < main_~y~0); 190#L14 [2019-11-15 22:58:25,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,883 INFO L82 PathProgramCache]: Analyzing trace with hash 925824930, now seen corresponding path program 2 times [2019-11-15 22:58:25,883 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:25,883 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843909570] [2019-11-15 22:58:25,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,884 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,911 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:25,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2019-11-15 22:58:25,912 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:25,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697300080] [2019-11-15 22:58:25,912 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,913 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,920 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:25,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:25,921 INFO L82 PathProgramCache]: Analyzing trace with hash 659527933, now seen corresponding path program 3 times [2019-11-15 22:58:25,922 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:58:25,922 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764588991] [2019-11-15 22:58:25,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,922 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:58:25,923 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:58:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-15 22:58:25,937 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-15 22:58:25,961 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:25,961 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:25,962 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:25,962 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:25,962 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-11-15 22:58:25,962 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:25,962 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:25,962 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:25,963 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2019-11-15 22:58:25,963 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:25,963 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:25,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:25,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:26,042 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:26,043 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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) [2019-11-15 22:58:26,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-15 22:58:26,049 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cbaef779-e19e-4c75-bd2f-f76b10b12a16/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) [2019-11-15 22:58:26,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-15 22:58:26,074 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:26,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-15 22:58:26,497 INFO L210 LassoAnalysis]: Preferences: [2019-11-15 22:58:26,497 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-11-15 22:58:26,497 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-15 22:58:26,497 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-11-15 22:58:26,497 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-11-15 22:58:26,497 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-15 22:58:26,498 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-15 22:58:26,498 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-11-15 22:58:26,498 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC3.c_Iteration4_Loop [2019-11-15 22:58:26,498 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-15 22:58:26,498 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-15 22:58:26,500 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:26,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:26,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-15 22:58:26,578 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-15 22:58:26,578 INFO L489 LassoAnalysis]: Using template 'affine'. [2019-11-15 22:58:26,579 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 [2019-11-15 22:58:26,580 INFO L337 nArgumentSynthesizer]: Template has degree 0. [2019-11-15 22:58:26,580 INFO L350 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-15 22:58:26,580 INFO L202 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-15 22:58:26,580 INFO L203 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-15 22:58:26,580 INFO L204 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-15 22:58:26,581 INFO L400 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-15 22:58:26,581 INFO L401 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-15 22:58:26,586 INFO L419 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-15 22:58:26,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-15 22:58:26,590 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-11-15 22:58:26,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-15 22:58:26,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-15 22:58:26,591 INFO L510 LassoAnalysis]: Proved termination. [2019-11-15 22:58:26,591 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~z~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-11-15 22:58:26,592 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-15 22:58:26,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:26,634 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:58:26,635 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:26,644 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:58:26,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:26,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:58:26,670 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 22:58:26,671 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-15 22:58:26,689 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 18 states and 24 transitions. Complement of second has 5 states. [2019-11-15 22:58:26,690 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 [2019-11-15 22:58:26,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:58:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-11-15 22:58:26,691 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 22:58:26,691 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:26,691 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:58:26,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:26,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:58:26,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:26,730 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:58:26,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:58:26,755 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-11-15 22:58:26,755 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-15 22:58:26,799 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 18 states and 26 transitions. Complement of second has 5 states. [2019-11-15 22:58:26,801 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 [2019-11-15 22:58:26,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:58:26,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2019-11-15 22:58:26,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 22:58:26,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:26,802 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-15 22:58:26,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:58:26,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:26,838 INFO L256 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-15 22:58:26,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:58:26,847 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-15 22:58:26,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:58:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:58:26,866 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 2 loop predicates [2019-11-15 22:58:26,866 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 10 Second operand 3 states. [2019-11-15 22:58:26,883 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 21 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 24 states and 34 transitions. Complement of second has 4 states. [2019-11-15 22:58:26,884 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 [2019-11-15 22:58:26,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-15 22:58:26,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2019-11-15 22:58:26,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2019-11-15 22:58:26,885 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:26,885 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-15 22:58:26,886 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:26,886 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2019-11-15 22:58:26,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-15 22:58:26,887 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 34 transitions. [2019-11-15 22:58:26,889 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:58:26,889 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2019-11-15 22:58:26,889 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-15 22:58:26,889 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-15 22:58:26,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-15 22:58:26,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-15 22:58:26,890 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:58:26,890 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:58:26,890 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:58:26,890 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-15 22:58:26,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:58:26,890 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-15 22:58:26,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-15 22:58:26,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.11 10:58:26 BoogieIcfgContainer [2019-11-15 22:58:26,898 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-15 22:58:26,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:58:26,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:58:26,899 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:58:26,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:58:23" (3/4) ... [2019-11-15 22:58:26,904 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-15 22:58:26,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:58:26,907 INFO L168 Benchmark]: Toolchain (without parser) took 4552.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 946.4 MB in the beginning and 870.9 MB in the end (delta: 75.5 MB). Peak memory consumption was 218.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:58:26,908 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:58:26,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 389.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:58:26,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.61 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. [2019-11-15 22:58:26,910 INFO L168 Benchmark]: Boogie Preprocessor took 21.43 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. [2019-11-15 22:58:26,911 INFO L168 Benchmark]: RCFGBuilder took 259.41 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2019-11-15 22:58:26,911 INFO L168 Benchmark]: BuchiAutomizer took 3836.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 870.9 MB in the end (delta: 246.2 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. [2019-11-15 22:58:26,912 INFO L168 Benchmark]: Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 870.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:58:26,915 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 389.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 946.4 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.61 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 21.43 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 259.41 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: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3836.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 870.9 MB in the end (delta: 246.2 MB). Peak memory consumption was 246.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.40 ms. Allocated memory is still 1.2 GB. Free memory is still 870.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x + z and consists of 4 locations. One deterministic module has affine ranking function -1 * x + y and consists of 3 locations. One deterministic module has affine ranking function 2 * x + -2 * z + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * z + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 37 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax189 hnf98 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...