./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaB14.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:31:17,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:31:17,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:31:17,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:31:17,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:31:17,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:31:17,215 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:31:17,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:31:17,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:31:17,221 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:31:17,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:31:17,223 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:31:17,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:31:17,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:31:17,226 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:31:17,227 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:31:17,228 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:31:17,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:31:17,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:31:17,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:31:17,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:31:17,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:31:17,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:31:17,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:31:17,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:31:17,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:31:17,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:31:17,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:31:17,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:31:17,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:31:17,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:31:17,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:31:17,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:31:17,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:31:17,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:31:17,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:31:17,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:31:17,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:31:17,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:31:17,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:31:17,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:31:17,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:31:17,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:31:17,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:31:17,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:31:17,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:31:17,273 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:31:17,274 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:31:17,274 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:31:17,274 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:31:17,275 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:31:17,275 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:31:17,275 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:31:17,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:31:17,276 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:31:17,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:31:17,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:31:17,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:31:17,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:31:17,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:31:17,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:31:17,278 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:31:17,278 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:31:17,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:31:17,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:31:17,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:31:17,279 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:31:17,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:31:17,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:31:17,280 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:31:17,280 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:31:17,281 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:31:17,282 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 512f7e19ac2b7cb7541d6a7df13b26d3df8b69a4 [2019-11-28 20:31:17,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:31:17,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:31:17,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:31:17,631 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:31:17,633 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:31:17,633 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-11-28 20:31:17,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0c4dd0/5823745d1ffa4153ae2815f3e6458b80/FLAGa13f66b68 [2019-11-28 20:31:18,218 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:31:18,219 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB14.c [2019-11-28 20:31:18,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0c4dd0/5823745d1ffa4153ae2815f3e6458b80/FLAGa13f66b68 [2019-11-28 20:31:18,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a0c4dd0/5823745d1ffa4153ae2815f3e6458b80 [2019-11-28 20:31:18,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:31:18,571 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:31:18,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:18,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:31:18,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:31:18,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:18,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f461f5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18, skipping insertion in model container [2019-11-28 20:31:18,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:18,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:31:18,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:31:18,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:18,850 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:31:18,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:18,889 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:31:18,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18 WrapperNode [2019-11-28 20:31:18,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:18,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:18,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:31:18,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:31:18,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:18,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,014 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:19,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:31:19,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:31:19,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:31:19,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,031 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... [2019-11-28 20:31:19,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:31:19,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:31:19,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:31:19,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:31:19,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:19,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:31:19,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:31:19,305 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:31:19,306 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 20:31:19,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:19 BoogieIcfgContainer [2019-11-28 20:31:19,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:31:19,308 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:31:19,308 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:31:19,313 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:31:19,314 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:19,314 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:31:18" (1/3) ... [2019-11-28 20:31:19,315 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ca90866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:19, skipping insertion in model container [2019-11-28 20:31:19,316 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:19,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:18" (2/3) ... [2019-11-28 20:31:19,316 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1ca90866 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:19, skipping insertion in model container [2019-11-28 20:31:19,316 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:19,316 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:19" (3/3) ... [2019-11-28 20:31:19,318 INFO L371 chiAutomizerObserver]: Analyzing ICFG PastaB14.c [2019-11-28 20:31:19,367 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:31:19,367 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:31:19,368 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:31:19,368 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:31:19,368 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:31:19,368 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:31:19,368 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:31:19,368 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:31:19,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 20:31:19,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:19,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:19,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:19,412 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:19,413 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:19,413 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:31:19,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 20:31:19,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:19,414 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:19,414 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:19,415 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:19,415 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:19,423 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L12-3true [2019-11-28 20:31:19,423 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-11-28 20:31:19,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:19,430 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 20:31:19,438 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:19,438 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467795881] [2019-11-28 20:31:19,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,531 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:19,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:19,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-11-28 20:31:19,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:19,534 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586186909] [2019-11-28 20:31:19,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:19,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:19,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:19,614 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586186909] [2019-11-28 20:31:19,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:31:19,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 20:31:19,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611653996] [2019-11-28 20:31:19,624 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 20:31:19,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:31:19,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:31:19,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:31:19,688 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-11-28 20:31:19,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:31:19,718 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-11-28 20:31:19,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:31:19,727 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-11-28 20:31:19,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:31:19,733 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-11-28 20:31:19,734 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 20:31:19,734 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 20:31:19,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-11-28 20:31:19,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:31:19,735 INFO L688 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-28 20:31:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-11-28 20:31:19,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-11-28 20:31:19,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:31:19,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-11-28 20:31:19,758 INFO L711 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-28 20:31:19,758 INFO L591 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-11-28 20:31:19,758 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:31:19,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-11-28 20:31:19,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-11-28 20:31:19,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:19,759 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:19,760 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:19,760 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:31:19,760 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 27#L12-3 [2019-11-28 20:31:19,760 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-11-28 20:31:19,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:19,761 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-11-28 20:31:19,761 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:19,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47872907] [2019-11-28 20:31:19,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:19,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,769 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:19,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:19,770 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-11-28 20:31:19,770 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:19,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960553161] [2019-11-28 20:31:19,771 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:19,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,783 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:19,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:19,784 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-11-28 20:31:19,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:19,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041332414] [2019-11-28 20:31:19,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:19,797 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:19,881 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:19,882 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:19,882 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:19,882 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:19,882 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:19,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:19,883 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:19,883 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:19,883 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-11-28 20:31:19,883 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:19,883 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:19,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:19,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:19,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,087 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:20,087 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,095 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,096 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,107 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:20,107 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:20,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:20,119 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:20,119 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:20,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,125 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:20,137 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:20,137 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:20,167 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:20,169 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:20,169 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:20,169 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:20,169 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:20,169 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:20,169 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,170 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:20,170 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:20,170 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration2_Loop [2019-11-28 20:31:20,170 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:20,171 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:20,174 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,181 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,186 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,310 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:20,316 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,331 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 [2019-11-28 20:31:20,334 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:20,334 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:20,335 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:20,335 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:20,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:20,341 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 [2019-11-28 20:31:20,350 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,367 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 [2019-11-28 20:31:20,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:20,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:20,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:20,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:20,374 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:20,374 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,396 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 [2019-11-28 20:31:20,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:20,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:20,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:20,400 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:20,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:20,404 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:20,404 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,409 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:20,416 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-11-28 20:31:20,416 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,432 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:20,432 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:20,432 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:20,433 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-11-28 20:31:20,439 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:20,482 INFO L264 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:20,483 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:20,497 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:20,499 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:20,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:20,567 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 [2019-11-28 20:31:20,570 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-11-28 20:31:20,611 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2019-11-28 20:31:20,613 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 [2019-11-28 20:31:20,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-11-28 20:31:20,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-11-28 20:31:20,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2019-11-28 20:31:20,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:20,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-28 20:31:20,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:20,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2019-11-28 20:31:20,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:20,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-11-28 20:31:20,624 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:20,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2019-11-28 20:31:20,625 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-11-28 20:31:20,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-11-28 20:31:20,626 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-28 20:31:20,626 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:20,626 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-28 20:31:20,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-28 20:31:20,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-28 20:31:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 20:31:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-28 20:31:20,628 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:20,629 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:20,629 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:31:20,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-28 20:31:20,633 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:31:20,634 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:20,634 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:20,635 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-11-28 20:31:20,635 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:31:20,636 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 80#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 77#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 78#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 76#L12-2 [2019-11-28 20:31:20,636 INFO L796 eck$LassoCheckResult]: Loop: 76#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 76#L12-2 [2019-11-28 20:31:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:20,636 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2019-11-28 20:31:20,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:20,637 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209397588] [2019-11-28 20:31:20,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:20,674 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:20,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:20,675 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-11-28 20:31:20,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:20,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202955602] [2019-11-28 20:31:20,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:20,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:20,683 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:20,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:20,684 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2019-11-28 20:31:20,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:20,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186224124] [2019-11-28 20:31:20,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:20,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:20,702 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:20,727 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:20,727 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:20,727 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:20,727 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:20,728 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:20,728 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,728 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:20,728 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:20,728 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2019-11-28 20:31:20,728 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:20,729 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:20,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,828 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:20,828 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,842 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 [2019-11-28 20:31:20,847 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:20,848 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,863 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,863 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:20,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:20,896 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:20,896 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=4}, {ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-1}] Lambdas: [1, 1, 1] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:20,918 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,918 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:20,923 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:20,924 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,940 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:20,940 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:20,963 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:20,963 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,973 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:20,976 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:20,976 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:20,976 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:20,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:20,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:20,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:20,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:20,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:20,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB14.c_Iteration3_Loop [2019-11-28 20:31:20,978 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:20,978 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:20,979 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:20,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:21,043 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:21,043 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-11-28 20:31:21,052 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 [2019-11-28 20:31:21,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:21,054 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:21,054 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:21,054 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:21,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:21,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:21,070 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:21,079 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 [2019-11-28 20:31:21,081 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:21,082 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:21,082 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:21,082 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:21,082 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:21,083 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:21,084 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:31:21,087 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:21,101 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 [2019-11-28 20:31:21,103 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:21,103 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:21,104 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:21,104 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:21,110 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:21,110 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:31:21,115 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:21,125 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 [2019-11-28 20:31:21,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:21,127 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:21,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:21,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:21,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:21,128 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:21,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:21,133 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:21,138 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 20:31:21,138 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:21,147 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:21,147 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:21,148 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:21,148 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Exception during sending of exit command (exit): Broken pipe [2019-11-28 20:31:21,151 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:21,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:21,198 INFO L264 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:21,199 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:21,205 WARN L262 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:21,206 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:21,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:21,207 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 20:31:21,207 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-11-28 20:31:21,227 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2019-11-28 20:31:21,228 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 [2019-11-28 20:31:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:31:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-11-28 20:31:21,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-28 20:31:21,229 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:21,229 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-28 20:31:21,230 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:21,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:31:21,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:21,232 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-11-28 20:31:21,233 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:31:21,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-11-28 20:31:21,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:31:21,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:31:21,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:31:21,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:31:21,234 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:21,234 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:21,234 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:31:21,235 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:31:21,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:31:21,236 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:31:21,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:31:21,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:31:21 BoogieIcfgContainer [2019-11-28 20:31:21,245 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:31:21,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:31:21,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:31:21,247 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:31:21,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:19" (3/4) ... [2019-11-28 20:31:21,264 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:31:21,264 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:31:21,269 INFO L168 Benchmark]: Toolchain (without parser) took 2694.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 956.3 MB in the beginning and 890.9 MB in the end (delta: 65.4 MB). Peak memory consumption was 188.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:21,270 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:21,277 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.60 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:21,278 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:21,279 INFO L168 Benchmark]: Boogie Preprocessor took 24.83 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. [2019-11-28 20:31:21,280 INFO L168 Benchmark]: RCFGBuilder took 266.80 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:21,281 INFO L168 Benchmark]: BuchiAutomizer took 1937.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.9 MB in the end (delta: 208.5 MB). Peak memory consumption was 208.5 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:21,282 INFO L168 Benchmark]: Witness Printer took 17.15 ms. Allocated memory is still 1.2 GB. Free memory is still 890.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:21,298 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 318.60 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 123.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 266.80 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1937.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.9 MB in the end (delta: 208.5 MB). Peak memory consumption was 208.5 MB. Max. memory is 11.5 GB. * Witness Printer took 17.15 ms. Allocated memory is still 1.2 GB. Free memory is still 890.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...