./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/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 b11f086006b59545dfe302b4d0afe0208312f571 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 02:33:26,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 02:33:26,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 02:33:26,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 02:33:26,251 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 02:33:26,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 02:33:26,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 02:33:26,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 02:33:26,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 02:33:26,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 02:33:26,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 02:33:26,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 02:33:26,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 02:33:26,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 02:33:26,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 02:33:26,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 02:33:26,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 02:33:26,279 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 02:33:26,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 02:33:26,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 02:33:26,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 02:33:26,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 02:33:26,292 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 02:33:26,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 02:33:26,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 02:33:26,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 02:33:26,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 02:33:26,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 02:33:26,301 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 02:33:26,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 02:33:26,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 02:33:26,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 02:33:26,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 02:33:26,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 02:33:26,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 02:33:26,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 02:33:26,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 02:33:26,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 02:33:26,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 02:33:26,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 02:33:26,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 02:33:26,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-20 02:33:26,320 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 02:33:26,321 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 02:33:26,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 02:33:26,322 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 02:33:26,322 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 02:33:26,322 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-20 02:33:26,322 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-20 02:33:26,322 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-20 02:33:26,322 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-20 02:33:26,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-20 02:33:26,323 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-20 02:33:26,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 02:33:26,323 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 02:33:26,323 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 02:33:26,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 02:33:26,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-20 02:33:26,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-20 02:33:26,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-20 02:33:26,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 02:33:26,324 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-20 02:33:26,325 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 02:33:26,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-20 02:33:26,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 02:33:26,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 02:33:26,325 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-20 02:33:26,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 02:33:26,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 02:33:26,326 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-20 02:33:26,326 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-20 02:33:26,327 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_1a822898-716f-45cd-8e1d-0bce7220a9e5/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 -> b11f086006b59545dfe302b4d0afe0208312f571 [2019-11-20 02:33:26,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 02:33:26,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 02:33:26,469 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 02:33:26,470 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 02:33:26,470 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 02:33:26,471 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/aaron3-1.c [2019-11-20 02:33:26,519 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/data/44ce73143/318db02a61f946a0acbedfd90b3ea253/FLAGcaac4055a [2019-11-20 02:33:26,911 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 02:33:26,911 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/sv-benchmarks/c/termination-crafted/aaron3-1.c [2019-11-20 02:33:26,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/data/44ce73143/318db02a61f946a0acbedfd90b3ea253/FLAGcaac4055a [2019-11-20 02:33:26,930 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/data/44ce73143/318db02a61f946a0acbedfd90b3ea253 [2019-11-20 02:33:26,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 02:33:26,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 02:33:26,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 02:33:26,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 02:33:26,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 02:33:26,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:33:26" (1/1) ... [2019-11-20 02:33:26,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dad0900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:26, skipping insertion in model container [2019-11-20 02:33:26,943 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:33:26" (1/1) ... [2019-11-20 02:33:26,949 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 02:33:26,965 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 02:33:27,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:33:27,121 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 02:33:27,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 02:33:27,216 INFO L192 MainTranslator]: Completed translation [2019-11-20 02:33:27,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27 WrapperNode [2019-11-20 02:33:27,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 02:33:27,217 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 02:33:27,217 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 02:33:27,217 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 02:33:27,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 02:33:27,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 02:33:27,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 02:33:27,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 02:33:27,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... [2019-11-20 02:33:27,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 02:33:27,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 02:33:27,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 02:33:27,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 02:33:27,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:27,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 02:33:27,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 02:33:27,531 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 02:33:27,531 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 02:33:27,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:27 BoogieIcfgContainer [2019-11-20 02:33:27,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 02:33:27,533 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-20 02:33:27,533 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-20 02:33:27,536 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-20 02:33:27,537 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:33:27,537 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 02:33:26" (1/3) ... [2019-11-20 02:33:27,538 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ad12fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:33:27, skipping insertion in model container [2019-11-20 02:33:27,538 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:33:27,538 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:33:27" (2/3) ... [2019-11-20 02:33:27,539 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ad12fca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 02:33:27, skipping insertion in model container [2019-11-20 02:33:27,539 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-20 02:33:27,539 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:27" (3/3) ... [2019-11-20 02:33:27,540 INFO L371 chiAutomizerObserver]: Analyzing ICFG aaron3-1.c [2019-11-20 02:33:27,581 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-20 02:33:27,581 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-20 02:33:27,581 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-20 02:33:27,581 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 02:33:27,581 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 02:33:27,581 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-20 02:33:27,581 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 02:33:27,581 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-20 02:33:27,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 02:33:27,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:33:27,639 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:33:27,639 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:33:27,645 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:33:27,649 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:33:27,649 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-20 02:33:27,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-11-20 02:33:27,651 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:33:27,651 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:33:27,651 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:33:27,651 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-20 02:33:27,651 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:33:27,658 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 6#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 7#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 9#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 12#L25true assume !!(main_~y~0 <= 1073741823); 13#L27-2true [2019-11-20 02:33:27,658 INFO L796 eck$LassoCheckResult]: Loop: 13#L27-2true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 5#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 13#L27-2true [2019-11-20 02:33:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2019-11-20 02:33:27,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:27,685 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814610346] [2019-11-20 02:33:27,689 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:27,781 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:27,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:27,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 1 times [2019-11-20 02:33:27,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:27,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119597993] [2019-11-20 02:33:27,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:27,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:27,795 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:27,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:27,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221836, now seen corresponding path program 1 times [2019-11-20 02:33:27,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:27,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355386787] [2019-11-20 02:33:27,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:27,818 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:27,874 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:27,875 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:27,875 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:27,875 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:27,875 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:33:27,875 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:27,875 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:27,876 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:27,876 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2019-11-20 02:33:27,876 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:27,876 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:27,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:27,902 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:27,909 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:27,928 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,020 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:28,021 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,027 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:28,027 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:33:28,036 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:28,036 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_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,045 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:28,046 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:33:28,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:28,052 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_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,065 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:28,065 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,077 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:33:28,077 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:33:28,341 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:33:28,343 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:28,343 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:28,343 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:28,343 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:28,343 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:33:28,344 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,344 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:28,344 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:28,344 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration1_Loop [2019-11-20 02:33:28,344 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:28,344 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:28,346 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,477 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:28,481 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:28,493 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:28,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:28,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:28,497 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:28,497 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:28,504 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:33:28,506 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,521 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/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 [2019-11-20 02:33:28,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:28,535 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:28,535 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:28,535 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:28,536 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:28,540 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:33:28,540 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-20 02:33:28,546 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,553 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:28,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:28,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:28,559 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:28,559 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:28,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:28,561 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:33:28,561 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:33:28,567 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:33:28,590 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:33:28,590 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,601 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:33:28,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:33:28,602 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:33:28,602 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 2*ULTIMATE.start_main_~x~0 - 2*ULTIMATE.start_main_~y~0 + 1 Supporting invariants [] [2019-11-20 02:33:28,607 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:33:28,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:28,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:33:28,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:28,662 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:33:28,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:33:28,686 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 [2019-11-20 02:33:28,687 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2019-11-20 02:33:28,735 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 31 states and 42 transitions. Complement of second has 8 states. [2019-11-20 02:33:28,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:33:28,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:33:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2019-11-20 02:33:28,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-20 02:33:28,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:28,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 7 letters. Loop has 2 letters. [2019-11-20 02:33:28,741 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:28,741 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 5 letters. Loop has 4 letters. [2019-11-20 02:33:28,742 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:28,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 42 transitions. [2019-11-20 02:33:28,745 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:33:28,749 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 12 states and 15 transitions. [2019-11-20 02:33:28,750 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-20 02:33:28,750 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 02:33:28,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2019-11-20 02:33:28,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:33:28,752 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 02:33:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2019-11-20 02:33:28,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-20 02:33:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 02:33:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2019-11-20 02:33:28,776 INFO L711 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 02:33:28,777 INFO L591 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2019-11-20 02:33:28,777 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-20 02:33:28,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2019-11-20 02:33:28,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-20 02:33:28,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:33:28,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:33:28,778 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:33:28,778 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-20 02:33:28,779 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 95#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 99#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 100#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 101#L25 assume !!(main_~y~0 <= 1073741823); 103#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 96#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2019-11-20 02:33:28,779 INFO L796 eck$LassoCheckResult]: Loop: 92#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 93#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 102#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 92#L31 [2019-11-20 02:33:28,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:28,780 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2019-11-20 02:33:28,780 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:28,780 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664885884] [2019-11-20 02:33:28,780 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:28,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:28,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:28,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:28,798 INFO L82 PathProgramCache]: Analyzing trace with hash 67272, now seen corresponding path program 1 times [2019-11-20 02:33:28,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:28,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374004965] [2019-11-20 02:33:28,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:28,807 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:28,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:28,808 INFO L82 PathProgramCache]: Analyzing trace with hash -312117156, now seen corresponding path program 1 times [2019-11-20 02:33:28,808 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:28,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483266866] [2019-11-20 02:33:28,809 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:28,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:28,833 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:28,897 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:28,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:28,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:28,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:28,898 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:33:28,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:28,898 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:28,898 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:28,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2019-11-20 02:33:28,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:28,899 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:28,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,911 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:28,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:29,045 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:29,045 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/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) [2019-11-20 02:33:29,054 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:29,054 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:29,059 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:29,059 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_1a822898-716f-45cd-8e1d-0bce7220a9e5/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) [2019-11-20 02:33:29,076 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:29,077 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:29,083 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:29,083 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-5} Honda state: {ULTIMATE.start_main_#t~nondet4=-5} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/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) [2019-11-20 02:33:29,104 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:29,104 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 [2019-11-20 02:33:29,108 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:29,109 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:29,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:29,125 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:29,146 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:33:29,146 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-20 02:33:31,178 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:33:31,180 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:31,180 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:31,180 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:31,181 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:31,181 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:33:31,181 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,181 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:31,181 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:31,181 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration2_Loop [2019-11-20 02:33:31,181 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:31,181 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:31,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:31,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:31,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:31,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:31,312 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:31,313 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,325 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,327 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,327 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:31,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:31,330 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:33:31,330 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,335 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,349 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,354 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,354 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:31,354 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,355 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 02:33:31,355 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:31,356 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-11-20 02:33:31,356 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:33:31,361 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,378 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,380 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,380 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,380 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:31,380 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:31,383 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:33:31,383 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,387 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,398 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:31,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:31,400 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:31,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:33:31,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,413 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-20 02:33:31,414 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,430 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:31,433 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,439 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:33:31,439 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-20 02:33:31,445 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,463 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,465 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,465 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:31,465 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,465 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-20 02:33:31,465 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:33:31,467 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:33:31,467 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,471 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,494 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,496 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,496 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,496 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:31,497 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,501 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-20 02:33:31,502 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-20 02:33:31,511 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:31,517 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:31,520 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:31,520 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:31,520 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:31,520 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:31,521 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-20 02:33:31,525 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-20 02:33:31,526 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,536 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:33:31,544 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-20 02:33:31,544 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:31,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:33:31,569 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:33:31,570 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:33:31,570 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2019-11-20 02:33:31,572 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:33:31,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:31,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:33:31,617 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:31,628 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-20 02:33:31,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:31,716 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-20 02:33:31,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:33:31,773 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2019-11-20 02:33:31,773 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2019-11-20 02:33:31,937 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 33 [2019-11-20 02:33:31,947 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 22 transitions. Complement of second has 6 states. [2019-11-20 02:33:31,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-20 02:33:31,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-20 02:33:31,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2019-11-20 02:33:31,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-20 02:33:31,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:31,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 10 letters. Loop has 3 letters. [2019-11-20 02:33:31,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:31,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 7 letters. Loop has 6 letters. [2019-11-20 02:33:31,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:31,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2019-11-20 02:33:31,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:33:31,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2019-11-20 02:33:31,956 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 02:33:31,956 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-11-20 02:33:31,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2019-11-20 02:33:31,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:33:31,957 INFO L688 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2019-11-20 02:33:31,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2019-11-20 02:33:31,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2019-11-20 02:33:31,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-11-20 02:33:31,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-11-20 02:33:31,959 INFO L711 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-20 02:33:31,959 INFO L591 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-11-20 02:33:31,959 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-20 02:33:31,959 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2019-11-20 02:33:31,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:33:31,960 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:33:31,960 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:33:31,960 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 02:33:31,960 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:33:31,964 INFO L794 eck$LassoCheckResult]: Stem: 183#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 184#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 188#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 189#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 190#L25 assume !!(main_~y~0 <= 1073741823); 192#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 193#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 179#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 181#L27-2 [2019-11-20 02:33:31,964 INFO L796 eck$LassoCheckResult]: Loop: 181#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 185#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 181#L27-2 [2019-11-20 02:33:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:31,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1295763161, now seen corresponding path program 2 times [2019-11-20 02:33:31,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:31,965 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625389443] [2019-11-20 02:33:31,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:31,985 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:31,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:31,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 2 times [2019-11-20 02:33:31,991 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:31,991 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153350567] [2019-11-20 02:33:31,991 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:31,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:31,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:31,996 INFO L82 PathProgramCache]: Analyzing trace with hash -312117149, now seen corresponding path program 1 times [2019-11-20 02:33:31,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:31,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623306656] [2019-11-20 02:33:31,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,013 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:32,031 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:32,031 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:32,031 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:32,031 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:32,031 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:33:32,031 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,031 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:32,031 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:32,032 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2019-11-20 02:33:32,032 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:32,032 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:32,033 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,039 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,049 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,110 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:32,111 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,115 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:32,115 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,120 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:32,120 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,126 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:32,126 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,130 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:32,130 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_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:32,141 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,146 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-20 02:33:32,146 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:32,152 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:33:32,170 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,476 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:33:32,478 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:32,478 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:32,478 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:32,478 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:32,478 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:33:32,478 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,478 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:32,478 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:32,478 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration3_Loop [2019-11-20 02:33:32,478 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:32,478 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:32,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,557 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:32,557 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,569 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:32,571 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:32,571 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:32,571 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:32,571 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:32,571 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:32,572 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:33:32,572 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,574 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,581 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:32,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:32,583 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:32,583 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:32,583 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:32,590 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-20 02:33:32,591 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,594 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,601 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:32,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:32,603 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:32,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:32,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:32,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:32,605 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:33:32,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,608 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:33:32,612 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:33:32,613 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,616 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:33:32,616 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:33:32,617 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:33:32,617 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,625 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:33:32,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:32,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:33:32,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:32,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:32,660 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:33:32,660 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:33:32,673 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 [2019-11-20 02:33:32,673 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-11-20 02:33:32,693 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 22 states and 29 transitions. Complement of second has 5 states. [2019-11-20 02:33:32,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:33:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:33:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-20 02:33:32,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2019-11-20 02:33:32,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:32,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 10 letters. Loop has 2 letters. [2019-11-20 02:33:32,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:32,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 4 letters. [2019-11-20 02:33:32,697 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:32,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 29 transitions. [2019-11-20 02:33:32,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:33:32,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 18 states and 23 transitions. [2019-11-20 02:33:32,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-11-20 02:33:32,699 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2019-11-20 02:33:32,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2019-11-20 02:33:32,699 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-20 02:33:32,699 INFO L688 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-20 02:33:32,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2019-11-20 02:33:32,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-20 02:33:32,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-20 02:33:32,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-11-20 02:33:32,701 INFO L711 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-20 02:33:32,702 INFO L591 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-11-20 02:33:32,702 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-20 02:33:32,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 23 transitions. [2019-11-20 02:33:32,702 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-20 02:33:32,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-20 02:33:32,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-20 02:33:32,703 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1] [2019-11-20 02:33:32,703 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-20 02:33:32,703 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 273#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 276#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 277#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 278#L25 assume !!(main_~y~0 <= 1073741823); 280#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 281#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 267#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 268#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 282#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 269#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 271#L27-2 [2019-11-20 02:33:32,704 INFO L796 eck$LassoCheckResult]: Loop: 271#L27-2 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 274#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 271#L27-2 [2019-11-20 02:33:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:32,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1085697206, now seen corresponding path program 3 times [2019-11-20 02:33:32,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:32,704 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854548761] [2019-11-20 02:33:32,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,747 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:32,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:32,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1931, now seen corresponding path program 3 times [2019-11-20 02:33:32,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:32,748 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438313445] [2019-11-20 02:33:32,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,753 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:32,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:32,753 INFO L82 PathProgramCache]: Analyzing trace with hash 322038932, now seen corresponding path program 2 times [2019-11-20 02:33:32,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 02:33:32,754 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357017445] [2019-11-20 02:33:32,754 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 02:33:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 02:33:32,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 02:33:32,804 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:32,804 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:32,804 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:32,804 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:32,805 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-20 02:33:32,805 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:32,805 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:32,805 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:32,805 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2019-11-20 02:33:32,805 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:32,805 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:32,806 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,827 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:32,877 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:32,877 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,885 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-20 02:33:32,886 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-20 02:33:32,897 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-20 02:33:32,897 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:33,175 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-20 02:33:33,177 INFO L210 LassoAnalysis]: Preferences: [2019-11-20 02:33:33,177 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-20 02:33:33,178 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-20 02:33:33,178 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-20 02:33:33,178 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-20 02:33:33,178 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:33,178 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-20 02:33:33,178 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-20 02:33:33,178 INFO L133 ssoRankerPreferences]: Filename of dumped script: aaron3-1.c_Iteration4_Loop [2019-11-20 02:33:33,178 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-20 02:33:33,178 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-20 02:33:33,179 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:33,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:33,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:33,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-20 02:33:33,235 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-20 02:33:33,235 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 35 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 35 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:33,244 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-20 02:33:33,247 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-20 02:33:33,247 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-20 02:33:33,247 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-20 02:33:33,247 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-20 02:33:33,247 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-20 02:33:33,249 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-20 02:33:33,249 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-20 02:33:33,253 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-20 02:33:33,258 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-20 02:33:33,259 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1a822898-716f-45cd-8e1d-0bce7220a9e5/bin/uautomizer/z3 Starting monitored process 36 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 36 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-20 02:33:33,265 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-20 02:33:33,266 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-20 02:33:33,266 INFO L510 LassoAnalysis]: Proved termination. [2019-11-20 02:33:33,266 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2019-11-20 02:33:33,267 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-20 02:33:33,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:33,288 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:33:33,288 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:33,297 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:33:33,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:33,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:33:33,316 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 [2019-11-20 02:33:33,317 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 02:33:33,331 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2019-11-20 02:33:33,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:33:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:33:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-20 02:33:33,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-20 02:33:33,333 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:33,333 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:33:33,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:33,359 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:33:33,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:33,365 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:33:33,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:33,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:33:33,379 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 [2019-11-20 02:33:33,380 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 02:33:33,389 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 20 states and 25 transitions. Complement of second has 5 states. [2019-11-20 02:33:33,389 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:33:33,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:33:33,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2019-11-20 02:33:33,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-20 02:33:33,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:33,390 INFO L639 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-11-20 02:33:33,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 02:33:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:33,412 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-20 02:33:33,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 02:33:33,418 WARN L253 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 02:33:33,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 02:33:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 02:33:33,429 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 [2019-11-20 02:33:33,429 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-11-20 02:33:33,441 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 23 states and 29 transitions. Complement of second has 4 states. [2019-11-20 02:33:33,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-20 02:33:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-20 02:33:33,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-11-20 02:33:33,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 2 letters. [2019-11-20 02:33:33,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:33,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 13 letters. Loop has 2 letters. [2019-11-20 02:33:33,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:33,443 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-20 02:33:33,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-20 02:33:33,443 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2019-11-20 02:33:33,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:33:33,445 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-11-20 02:33:33,445 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-20 02:33:33,445 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-20 02:33:33,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-20 02:33:33,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-20 02:33:33,445 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:33:33,445 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:33:33,445 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 02:33:33,445 INFO L424 BuchiCegarLoop]: ======== Iteration 5============ [2019-11-20 02:33:33,445 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-20 02:33:33,446 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-20 02:33:33,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-20 02:33:33,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 02:33:33 BoogieIcfgContainer [2019-11-20 02:33:33,451 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-20 02:33:33,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 02:33:33,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 02:33:33,452 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 02:33:33,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:33:27" (3/4) ... [2019-11-20 02:33:33,455 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-20 02:33:33,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 02:33:33,457 INFO L168 Benchmark]: Toolchain (without parser) took 6521.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.4 MB in the beginning and 977.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 109.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:33:33,457 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:33:33,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:33:33,458 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.59 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:33:33,459 INFO L168 Benchmark]: Boogie Preprocessor took 28.34 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-20 02:33:33,459 INFO L168 Benchmark]: RCFGBuilder took 251.90 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-20 02:33:33,460 INFO L168 Benchmark]: BuchiAutomizer took 5918.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 138.0 MB). Peak memory consumption was 138.0 MB. Max. memory is 11.5 GB. [2019-11-20 02:33:33,460 INFO L168 Benchmark]: Witness Printer took 4.00 ms. Allocated memory is still 1.2 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 02:33:33,472 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 280.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -189.1 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.59 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 28.34 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 251.90 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: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5918.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 138.0 MB). Peak memory consumption was 138.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.00 ms. Allocated memory is still 1.2 GB. Free memory is still 977.3 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 2 * x + -2 * y + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2 * tx + 2 * z + 2147483647) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 4.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 60 SDtfs, 60 SDslu, 8 SDs, 0 SdLazy, 39 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 30ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...