./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.17.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/b.17.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 4c1132cbc7f5ece5e256e1f8dfde86f3ca50a733 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:36:37,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:36:37,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:36:37,611 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:36:37,611 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:36:37,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:36:37,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:36:37,616 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:36:37,617 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:36:37,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:36:37,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:36:37,620 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:36:37,620 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:36:37,621 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:36:37,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:36:37,624 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:36:37,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:36:37,625 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:36:37,627 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:36:37,629 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:36:37,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:36:37,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:36:37,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:36:37,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:36:37,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:36:37,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:36:37,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:36:37,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:36:37,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:36:37,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:36:37,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:36:37,647 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:36:37,648 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:36:37,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:36:37,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:36:37,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:36:37,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:36:37,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:36:37,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:36:37,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:36:37,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:36:37,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:36:37,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:36:37,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:36:37,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:36:37,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:36:37,679 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:36:37,679 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:36:37,680 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:36:37,680 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:36:37,680 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:36:37,680 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:36:37,680 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:36:37,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:36:37,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:36:37,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:36:37,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:36:37,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:36:37,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:36:37,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:36:37,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:36:37,682 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:36:37,682 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:36:37,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:36:37,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:36:37,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:36:37,683 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:36:37,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:36:37,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:36:37,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:36:37,684 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:36:37,685 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:36:37,685 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 -> 4c1132cbc7f5ece5e256e1f8dfde86f3ca50a733 [2020-10-20 06:36:37,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:36:37,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:36:37,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:36:37,901 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:36:37,901 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:36:37,902 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.17.c [2020-10-20 06:36:37,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd7c7e63/5322b944fe944d8c9411448a00ca4a2d/FLAG81e94f383 [2020-10-20 06:36:38,517 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:36:38,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.17.c [2020-10-20 06:36:38,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd7c7e63/5322b944fe944d8c9411448a00ca4a2d/FLAG81e94f383 [2020-10-20 06:36:38,918 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/acd7c7e63/5322b944fe944d8c9411448a00ca4a2d [2020-10-20 06:36:38,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:36:38,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:36:38,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:36:38,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:36:38,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:36:38,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:36:38" (1/1) ... [2020-10-20 06:36:38,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bd0a5e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:38, skipping insertion in model container [2020-10-20 06:36:38,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:36:38" (1/1) ... [2020-10-20 06:36:38,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:36:38,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:36:39,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:36:39,146 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:36:39,175 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:36:39,191 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:36:39,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39 WrapperNode [2020-10-20 06:36:39,191 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:36:39,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:36:39,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:36:39,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:36:39,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:36:39,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:36:39,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:36:39,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:36:39,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,241 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,251 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (1/1) ... [2020-10-20 06:36:39,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:36:39,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:36:39,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:36:39,254 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:36:39,255 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (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 [2020-10-20 06:36:39,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:36:39,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:36:39,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:36:39,461 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 06:36:39,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:39 BoogieIcfgContainer [2020-10-20 06:36:39,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:36:39,463 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:36:39,463 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:36:39,467 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:36:39,468 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:39,468 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:36:38" (1/3) ... [2020-10-20 06:36:39,469 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e3b4767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:36:39, skipping insertion in model container [2020-10-20 06:36:39,469 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:39,469 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:36:39" (2/3) ... [2020-10-20 06:36:39,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e3b4767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:36:39, skipping insertion in model container [2020-10-20 06:36:39,470 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:36:39,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:39" (3/3) ... [2020-10-20 06:36:39,472 INFO L373 chiAutomizerObserver]: Analyzing ICFG b.17.c [2020-10-20 06:36:39,530 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:36:39,530 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:36:39,530 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:36:39,530 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:36:39,530 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:36:39,531 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:36:39,531 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:36:39,531 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:36:39,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-20 06:36:39,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:36:39,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:39,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:39,585 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:36:39,586 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:36:39,586 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:36:39,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-10-20 06:36:39,590 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-10-20 06:36:39,590 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:39,590 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:39,591 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:36:39,591 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-20 06:36:39,608 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 3#L12-2true [2020-10-20 06:36:39,608 INFO L796 eck$LassoCheckResult]: Loop: 3#L12-2true assume !!(main_~x~0 > main_~z~0); 6#L13-2true assume !(main_~y~0 > main_~z~0); 4#L13-3true main_~x~0 := main_~x~0 - 1; 3#L12-2true [2020-10-20 06:36:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:39,617 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:36:39,631 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:39,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283298191] [2020-10-20 06:36:39,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:39,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:39,753 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:39,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:39,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:39,783 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:39,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:39,785 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2020-10-20 06:36:39,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:39,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873383489] [2020-10-20 06:36:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:39,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:39,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:39,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:39,822 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:39,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:39,825 INFO L82 PathProgramCache]: Analyzing trace with hash 963472, now seen corresponding path program 1 times [2020-10-20 06:36:39,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:39,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455055702] [2020-10-20 06:36:39,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:39,833 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:39,841 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:39,844 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:39,911 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:39,913 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:39,913 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:39,913 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:39,914 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:36:39,914 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:39,914 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:39,915 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:39,915 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2020-10-20 06:36:39,915 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:39,915 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:39,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:39,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:39,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:40,064 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:40,064 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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:40,073 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:40,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:40,088 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:40,088 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 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 [2020-10-20 06:36:40,121 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:40,121 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:40,126 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:40,126 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 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 [2020-10-20 06:36:40,174 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:40,175 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 [2020-10-20 06:36:40,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:40,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:36:40,486 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:36:40,488 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:40,488 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:40,488 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:40,488 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:40,489 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:36:40,489 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:40,489 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:40,489 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:40,490 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration1_Loop [2020-10-20 06:36:40,490 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:40,490 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:40,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:40,502 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:40,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:40,585 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:40,591 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) [2020-10-20 06:36:40,598 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 [2020-10-20 06:36:40,603 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:40,603 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:40,603 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:40,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:40,615 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:40,616 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 [2020-10-20 06:36:40,627 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) [2020-10-20 06:36:40,680 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 [2020-10-20 06:36:40,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:40,683 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:40,683 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:40,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:40,692 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:40,692 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:36:40,702 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) [2020-10-20 06:36:40,750 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 Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:40,752 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:40,753 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:40,753 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:40,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:40,754 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:40,759 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:40,761 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:36:40,766 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:40,772 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:36:40,772 INFO L444 ModelExtractionUtils]: 2 out of 5 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:40,786 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:40,786 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:40,787 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:40,788 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:40,829 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:40,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:40,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:40,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:40,888 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:40,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:40,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:40,929 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 [2020-10-20 06:36:40,931 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-10-20 06:36:41,020 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 35 transitions. Complement of second has 7 states. [2020-10-20 06:36:41,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-20 06:36:41,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-20 06:36:41,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 21 transitions. [2020-10-20 06:36:41,026 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 3 letters. [2020-10-20 06:36:41,027 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:41,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 4 letters. Loop has 3 letters. [2020-10-20 06:36:41,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:41,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 21 transitions. Stem has 1 letters. Loop has 6 letters. [2020-10-20 06:36:41,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:41,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 35 transitions. [2020-10-20 06:36:41,033 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:41,038 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2020-10-20 06:36:41,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-10-20 06:36:41,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2020-10-20 06:36:41,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-10-20 06:36:41,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-10-20 06:36:41,041 INFO L691 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-10-20 06:36:41,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-10-20 06:36:41,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-10-20 06:36:41,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-20 06:36:41,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 9 transitions. [2020-10-20 06:36:41,070 INFO L714 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-20 06:36:41,071 INFO L594 BuchiCegarLoop]: Abstraction has 6 states and 9 transitions. [2020-10-20 06:36:41,071 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:36:41,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 9 transitions. [2020-10-20 06:36:41,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:36:41,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:36:41,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:36:41,073 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-20 06:36:41,073 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:36:41,073 INFO L794 eck$LassoCheckResult]: Stem: 75#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 70#L12-2 assume !!(main_~x~0 > main_~z~0); 72#L13-2 [2020-10-20 06:36:41,073 INFO L796 eck$LassoCheckResult]: Loop: 72#L13-2 assume !!(main_~y~0 > main_~z~0);main_~y~0 := main_~y~0 - 1; 72#L13-2 [2020-10-20 06:36:41,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:41,074 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:36:41,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:41,075 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708707518] [2020-10-20 06:36:41,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:41,080 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:41,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:41,083 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:41,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:41,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:41,086 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-10-20 06:36:41,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:41,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437336635] [2020-10-20 06:36:41,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:41,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:41,091 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:41,093 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:41,095 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:41,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:41,095 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2020-10-20 06:36:41,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:36:41,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658960236] [2020-10-20 06:36:41,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:36:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:41,102 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:36:41,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:36:41,109 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:36:41,125 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:41,125 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:41,125 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:41,126 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:41,126 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:36:41,126 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:41,126 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:41,126 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:41,126 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2020-10-20 06:36:41,126 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:41,127 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:41,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:41,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:41,140 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:41,183 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:41,183 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) [2020-10-20 06:36:41,188 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:41,188 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 [2020-10-20 06:36:41,193 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:36:41,193 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) [2020-10-20 06:36:41,238 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:36:41,238 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 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) [2020-10-20 06:36:41,302 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:36:41,302 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 [2020-10-20 06:36:41,562 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:36:41,565 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:36:41,565 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:36:41,565 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:36:41,565 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:36:41,565 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:36:41,565 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:41,565 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:36:41,566 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:36:41,566 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.17.c_Iteration2_Loop [2020-10-20 06:36:41,566 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:36:41,566 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:36:41,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:41,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:41,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-20 06:36:41,623 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:36:41,623 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-20 06:36:41,639 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 [2020-10-20 06:36:41,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:41,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:41,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:41,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:41,649 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:36:41,651 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:41,659 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 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 [2020-10-20 06:36:41,692 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 [2020-10-20 06:36:41,694 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:36:41,694 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:36:41,695 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:36:41,695 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:36:41,695 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:36:41,697 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:36:41,697 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:36:41,700 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:36:41,705 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:36:41,705 INFO L444 ModelExtractionUtils]: 0 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-20 06:36:41,717 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:36:41,718 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:36:41,718 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:36:41,718 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~z~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:36:41,744 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:36:41,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:36:41,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:41,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:36:41,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:36:41,782 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:36:41,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:36:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:36:41,783 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 [2020-10-20 06:36:41,783 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5 Second operand 2 states. [2020-10-20 06:36:41,798 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 9 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 13 states and 18 transitions. Complement of second has 4 states. [2020-10-20 06:36:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-20 06:36:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:36:41,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2020-10-20 06:36:41,801 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-20 06:36:41,801 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:41,802 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 3 letters. Loop has 1 letters. [2020-10-20 06:36:41,802 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:41,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-20 06:36:41,803 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:36:41,803 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2020-10-20 06:36:41,804 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:41,804 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2020-10-20 06:36:41,804 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:36:41,804 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:36:41,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:36:41,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:36:41,805 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:41,806 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:41,806 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:36:41,806 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-20 06:36:41,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:36:41,807 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:36:41,807 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:36:41,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:36:41 BoogieIcfgContainer [2020-10-20 06:36:41,816 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:36:41,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:36:41,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:36:41,818 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:36:41,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:36:39" (3/4) ... [2020-10-20 06:36:41,822 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:36:41,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:36:41,827 INFO L168 Benchmark]: Toolchain (without parser) took 2902.29 ms. Allocated memory was 41.9 MB in the beginning and 48.2 MB in the end (delta: 6.3 MB). Free memory was 21.6 MB in the beginning and 10.5 MB in the end (delta: 11.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,829 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 31.5 MB. Free memory was 8.6 MB in the beginning and 8.6 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.60 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.9 MB in the beginning and 24.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.61 ms. Allocated memory is still 42.5 MB. Free memory was 24.8 MB in the beginning and 23.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,839 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 42.5 MB. Free memory was 23.3 MB in the beginning and 22.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,839 INFO L168 Benchmark]: RCFGBuilder took 209.19 ms. Allocated memory is still 42.5 MB. Free memory was 22.2 MB in the beginning and 13.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,840 INFO L168 Benchmark]: BuchiAutomizer took 2353.06 ms. Allocated memory was 42.5 MB in the beginning and 48.2 MB in the end (delta: 5.8 MB). Free memory was 13.0 MB in the beginning and 10.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,841 INFO L168 Benchmark]: Witness Printer took 6.45 ms. Allocated memory is still 48.2 MB. Free memory was 10.9 MB in the beginning and 10.5 MB in the end (delta: 408.8 kB). Peak memory consumption was 408.8 kB. Max. memory is 14.3 GB. [2020-10-20 06:36:41,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 31.5 MB. Free memory was 8.6 MB in the beginning and 8.6 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 262.60 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 20.9 MB in the beginning and 24.8 MB in the end (delta: -4.0 MB). Peak memory consumption was 11.9 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 36.61 ms. Allocated memory is still 42.5 MB. Free memory was 24.8 MB in the beginning and 23.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 42.5 MB. Free memory was 23.3 MB in the beginning and 22.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 209.19 ms. Allocated memory is still 42.5 MB. Free memory was 22.2 MB in the beginning and 13.2 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 2353.06 ms. Allocated memory was 42.5 MB in the beginning and 48.2 MB in the end (delta: 5.8 MB). Free memory was 13.0 MB in the beginning and 10.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 7.9 MB. Max. memory is 14.3 GB. * Witness Printer took 6.45 ms. Allocated memory is still 48.2 MB. Free memory was 10.9 MB in the beginning and 10.5 MB in the end (delta: 408.8 kB). Peak memory consumption was 408.8 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * z and consists of 5 locations. One deterministic module has affine ranking function y + -1 * z and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 7 SDtfs, 13 SDslu, 7 SDs, 0 SdLazy, 15 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax202 hnf98 lsp48 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...