./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 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-crafted/Benghazi_nondet-2.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 1be465c325e488658b014d302be974cdfc478282 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:39:30,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:39:30,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:39:30,482 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:39:30,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:39:30,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:39:30,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:39:30,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:39:30,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:39:30,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:39:30,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:39:30,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:39:30,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:39:30,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:39:30,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:39:30,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:39:30,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:39:30,501 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:39:30,502 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:39:30,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:39:30,510 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:39:30,513 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:39:30,514 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:39:30,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:39:30,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:39:30,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:39:30,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:39:30,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:39:30,526 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:39:30,527 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:39:30,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:39:30,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:39:30,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:39:30,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:39:30,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:39:30,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:39:30,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:39:30,533 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:39:30,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:39:30,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:39:30,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:39:30,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-19 18:39:30,595 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:39:30,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:39:30,599 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:39:30,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:39:30,600 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:39:30,600 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 18:39:30,601 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 18:39:30,601 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 18:39:30,601 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 18:39:30,601 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 18:39:30,602 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 18:39:30,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:39:30,603 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:39:30,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:39:30,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:39:30,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 18:39:30,605 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 18:39:30,605 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 18:39:30,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:39:30,605 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 18:39:30,606 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:39:30,606 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 18:39:30,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:39:30,607 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:39:30,607 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 18:39:30,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:39:30,608 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:39:30,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:39:30,608 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 18:39:30,609 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 18:39:30,610 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 -> 1be465c325e488658b014d302be974cdfc478282 [2020-10-19 18:39:30,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:39:30,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:39:30,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:39:30,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:39:30,975 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:39:30,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2020-10-19 18:39:31,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39101adf0/2591d182e78342afb27d07e75b72ea4d/FLAG319050ec8 [2020-10-19 18:39:31,507 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:39:31,508 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Benghazi_nondet-2.c [2020-10-19 18:39:31,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39101adf0/2591d182e78342afb27d07e75b72ea4d/FLAG319050ec8 [2020-10-19 18:39:31,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39101adf0/2591d182e78342afb27d07e75b72ea4d [2020-10-19 18:39:31,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:39:31,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:39:31,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:39:31,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:39:31,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:39:31,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c8983df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31, skipping insertion in model container [2020-10-19 18:39:31,551 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:39:31,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:39:31,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:39:31,737 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:39:31,755 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:39:31,769 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:39:31,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31 WrapperNode [2020-10-19 18:39:31,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:39:31,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:39:31,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:39:31,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:39:31,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,895 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:39:31,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:39:31,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:39:31,896 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:39:31,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (1/1) ... [2020-10-19 18:39:31,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:39:31,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:39:31,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:39:31,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:39:31,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (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 [2020-10-19 18:39:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:39:31,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:39:32,149 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:39:32,150 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-19 18:39:32,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:39:32 BoogieIcfgContainer [2020-10-19 18:39:32,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:39:32,152 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 18:39:32,152 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 18:39:32,156 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 18:39:32,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:39:32,157 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 06:39:31" (1/3) ... [2020-10-19 18:39:32,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24523c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:39:32, skipping insertion in model container [2020-10-19 18:39:32,158 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:39:32,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:39:31" (2/3) ... [2020-10-19 18:39:32,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24523c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 06:39:32, skipping insertion in model container [2020-10-19 18:39:32,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 18:39:32,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:39:32" (3/3) ... [2020-10-19 18:39:32,161 INFO L373 chiAutomizerObserver]: Analyzing ICFG Benghazi_nondet-2.c [2020-10-19 18:39:32,210 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 18:39:32,211 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 18:39:32,211 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 18:39:32,211 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:39:32,212 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:39:32,212 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 18:39:32,212 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:39:32,212 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 18:39:32,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-10-19 18:39:32,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:39:32,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:32,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:32,253 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:39:32,253 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:39:32,253 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 18:39:32,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2020-10-19 18:39:32,255 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-19 18:39:32,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 18:39:32,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 18:39:32,256 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-10-19 18:39:32,256 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-19 18:39:32,263 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~d1~0, main_~d2~0, main_~d1old~0;havoc main_~x~0;havoc main_~d1~0;havoc main_~d2~0;havoc main_~d1old~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~d1~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d2~0 := main_#t~nondet2;havoc main_#t~nondet2; 6#L18true assume !!(-1048575 <= main_~x~0 && main_~x~0 <= 1048575); 8#L19true assume !!(-1048575 <= main_~d1~0 && main_~d1~0 <= 1048575); 11#L20true assume !!(-1048575 <= main_~d2~0 && main_~d2~0 <= 1048575); 10#L21-2true [2020-10-19 18:39:32,263 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~d1~0;main_~d1old~0 := main_~d1~0;main_~d1~0 := 1 + main_~d2~0;main_~d2~0 := 1 + main_~d1old~0; 10#L21-2true [2020-10-19 18:39:32,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:32,268 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2020-10-19 18:39:32,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:32,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013558067] [2020-10-19 18:39:32,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:32,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:32,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:32,360 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:32,374 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:32,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:32,375 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2020-10-19 18:39:32,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:32,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537310437] [2020-10-19 18:39:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:32,385 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:32,390 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:32,392 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:32,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:32,394 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2020-10-19 18:39:32,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 18:39:32,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261799860] [2020-10-19 18:39:32,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 18:39:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:32,405 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 18:39:32,415 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 18:39:32,418 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 18:39:32,498 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:32,499 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:32,499 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:32,500 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:32,500 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 18:39:32,500 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:32,501 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:32,501 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:32,501 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2020-10-19 18:39:32,502 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:32,502 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:32,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:32,543 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:32,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:32,689 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:32,690 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) [2020-10-19 18:39:32,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:32,696 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 [2020-10-19 18:39:32,707 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:39:32,708 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) [2020-10-19 18:39:32,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:32,743 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:32,748 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 18:39:32,748 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) [2020-10-19 18:39:32,785 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 18:39:32,785 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:32,834 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 18:39:32,834 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:35,958 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 18:39:35,960 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 18:39:35,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 18:39:35,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 18:39:35,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 18:39:35,961 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 18:39:35,961 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:35,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 18:39:35,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 18:39:35,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: Benghazi_nondet-2.c_Iteration1_Loop [2020-10-19 18:39:35,962 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 18:39:35,962 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 18:39:35,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:35,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:35,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 18:39:36,073 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 18:39:36,079 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) [2020-10-19 18:39:36,090 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,093 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,093 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:36,094 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,094 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,094 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:36,100 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 18:39:36,100 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:36,108 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,153 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 18:39:36,156 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,156 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,157 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,157 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:36,163 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:36,163 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:39:36,170 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,199 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 [2020-10-19 18:39:36,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,205 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 18:39:36,214 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 18:39:36,215 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-19 18:39:36,221 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:36,253 INFO L489 LassoAnalysis]: Using template '2-nested'. 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,269 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 [2020-10-19 18:39:36,272 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,272 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:36,273 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,273 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,273 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:36,280 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2020-10-19 18:39:36,283 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:36,291 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,336 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 [2020-10-19 18:39:36,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,339 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,340 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,340 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:36,349 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:39:36,353 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-19 18:39:36,359 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 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 [2020-10-19 18:39:36,399 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 [2020-10-19 18:39:36,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,402 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,402 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,402 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2020-10-19 18:39:36,412 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2020-10-19 18:39:36,412 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2020-10-19 18:39:36,424 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-10-19 18:39:36,457 INFO L489 LassoAnalysis]: Using template '3-nested'. 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) [2020-10-19 18:39:36,465 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 18:39:36,469 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 18:39:36,469 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 18:39:36,469 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 18:39:36,470 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2020-10-19 18:39:36,477 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-10-19 18:39:36,477 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 18:39:36,485 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 18:39:36,499 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2020-10-19 18:39:36,499 INFO L444 ModelExtractionUtils]: 8 out of 16 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 18:39:36,514 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 18:39:36,514 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 18:39:36,514 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 18:39:36,515 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 3-nested ranking function: f0 = -1*ULTIMATE.start_main_~d1~0 - 1*ULTIMATE.start_main_~d2~0 f1 = 2*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~d1~0 + 1 f2 = 1*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 18:39:36,555 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 18:39:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 18:39:36,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:36,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 18:39:36,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:36,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 18:39:36,651 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 18:39:36,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 18:39:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 18:39:36,668 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 [2020-10-19 18:39:36,669 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2020-10-19 18:39:36,713 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 21 states and 26 transitions. Complement of second has 5 states. [2020-10-19 18:39:36,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 18:39:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-19 18:39:36,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2020-10-19 18:39:36,718 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2020-10-19 18:39:36,719 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:36,719 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2020-10-19 18:39:36,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:36,720 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-19 18:39:36,720 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 18:39:36,721 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2020-10-19 18:39:36,725 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:39:36,728 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2020-10-19 18:39:36,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 18:39:36,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 18:39:36,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 18:39:36,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 18:39:36,730 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:39:36,730 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:39:36,731 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 18:39:36,731 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 18:39:36,731 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 18:39:36,731 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 18:39:36,732 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 18:39:36,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 06:39:36 BoogieIcfgContainer [2020-10-19 18:39:36,739 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 18:39:36,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:39:36,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:39:36,740 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:39:36,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:39:32" (3/4) ... [2020-10-19 18:39:36,744 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 18:39:36,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:39:36,747 INFO L168 Benchmark]: Toolchain (without parser) took 5208.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 958.6 MB in the beginning and 1.0 GB in the end (delta: -47.6 MB). Peak memory consumption was 134.4 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:36,748 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:39:36,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.74 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:36,750 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 947.9 MB in the beginning and 1.2 GB in the end (delta: -230.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:36,751 INFO L168 Benchmark]: Boogie Preprocessor took 27.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:36,752 INFO L168 Benchmark]: RCFGBuilder took 228.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:36,753 INFO L168 Benchmark]: BuchiAutomizer took 4586.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 151.7 MB). Peak memory consumption was 151.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:39:36,753 INFO L168 Benchmark]: Witness Printer took 4.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:39:36,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 227.74 ms. Allocated memory is still 1.0 GB. Free memory was 958.6 MB in the beginning and 947.9 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 123.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Free memory was 947.9 MB in the beginning and 1.2 GB in the end (delta: -230.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 228.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4586.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.0 GB in the end (delta: 151.7 MB). Peak memory consumption was 151.7 MB. Max. memory is 11.5 GB. * Witness Printer took 4.88 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 3-nested ranking function (if -1 * d1 + -1 * d2 > 0 then 2 else (if 2 * x + -1 * d1 + 1 > 0 then 1 else 0)), (if -1 * d1 + -1 * d2 > 0 then -1 * d1 + -1 * d2 else (if 2 * x + -1 * d1 + 1 > 0 then 2 * x + -1 * d1 + 1 else x + 1)) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.3s. 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 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf94 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq195 hnf91 smp100 dnf100 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 37ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...