./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Waldkirch.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-crafted/Waldkirch.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 7a10ccd42123994759390bf7d921442c28e0623a .............................................................................................................................................................................................................................................................................................................................................................................................................. 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 06:33:39,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:33:39,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:33:39,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:33:39,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:33:39,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:33:39,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:33:39,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:33:39,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:33:39,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:33:39,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:33:39,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:33:39,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:33:39,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:33:39,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:33:39,486 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:33:39,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:33:39,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:33:39,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:33:39,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:33:39,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:33:39,500 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:33:39,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:33:39,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:33:39,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:33:39,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:33:39,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:33:39,513 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:33:39,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:33:39,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:33:39,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:33:39,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:33:39,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:33:39,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:33:39,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:33:39,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:33:39,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:33:39,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:33:39,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:33:39,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:33:39,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:33:39,526 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-10-20 06:33:39,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:33:39,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:33:39,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:33:39,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:33:39,578 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:33:39,578 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-20 06:33:39,578 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-20 06:33:39,579 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-20 06:33:39,579 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-20 06:33:39,579 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-20 06:33:39,580 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-20 06:33:39,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:33:39,581 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:33:39,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:33:39,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:33:39,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-20 06:33:39,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-20 06:33:39,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-20 06:33:39,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:33:39,583 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-20 06:33:39,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:33:39,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-20 06:33:39,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:33:39,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:33:39,584 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-20 06:33:39,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:33:39,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:33:39,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:33:39,585 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-20 06:33:39,586 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-20 06:33:39,586 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 -> 7a10ccd42123994759390bf7d921442c28e0623a [2020-10-20 06:33:39,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:33:39,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:33:39,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:33:39,819 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:33:39,820 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:33:39,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Waldkirch.c [2020-10-20 06:33:39,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92218c5c7/7a1815c1ebc949fdaf33325a0c9d9d9d/FLAG3fcf1ac15 [2020-10-20 06:33:40,364 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:33:40,365 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Waldkirch.c [2020-10-20 06:33:40,372 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92218c5c7/7a1815c1ebc949fdaf33325a0c9d9d9d/FLAG3fcf1ac15 [2020-10-20 06:33:40,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/92218c5c7/7a1815c1ebc949fdaf33325a0c9d9d9d [2020-10-20 06:33:40,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:33:40,767 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:33:40,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:40,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:33:40,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:33:40,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:40" (1/1) ... [2020-10-20 06:33:40,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8c4c52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:40, skipping insertion in model container [2020-10-20 06:33:40,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:33:40" (1/1) ... [2020-10-20 06:33:40,785 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:33:40,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:33:41,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:41,049 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:33:41,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:33:41,069 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:33:41,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41 WrapperNode [2020-10-20 06:33:41,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:33:41,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:41,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:33:41,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:33:41,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,097 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:33:41,098 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:33:41,098 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:33:41,098 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:33:41,104 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (1/1) ... [2020-10-20 06:33:41,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:33:41,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:33:41,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:33:41,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:33:41,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (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 06:33:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:33:41,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:33:41,296 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:33:41,297 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:33:41,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:41 BoogieIcfgContainer [2020-10-20 06:33:41,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:33:41,299 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-20 06:33:41,299 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-20 06:33:41,302 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-20 06:33:41,303 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:41,304 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.10 06:33:40" (1/3) ... [2020-10-20 06:33:41,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29678418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:41, skipping insertion in model container [2020-10-20 06:33:41,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:41,305 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:33:41" (2/3) ... [2020-10-20 06:33:41,305 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@29678418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.10 06:33:41, skipping insertion in model container [2020-10-20 06:33:41,305 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-20 06:33:41,306 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:41" (3/3) ... [2020-10-20 06:33:41,307 INFO L373 chiAutomizerObserver]: Analyzing ICFG Waldkirch.c [2020-10-20 06:33:41,354 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-20 06:33:41,354 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-20 06:33:41,354 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-20 06:33:41,355 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:33:41,355 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:33:41,355 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-20 06:33:41,355 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:33:41,355 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-20 06:33:41,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:33:41,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:33:41,389 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:41,389 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:41,395 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:33:41,395 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:41,396 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-20 06:33:41,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-10-20 06:33:41,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-10-20 06:33:41,397 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-20 06:33:41,397 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-20 06:33:41,397 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-10-20 06:33:41,397 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-10-20 06:33:41,403 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L14-2true [2020-10-20 06:33:41,403 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - 1; 6#L14-2true [2020-10-20 06:33:41,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:41,408 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-10-20 06:33:41,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:41,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428834370] [2020-10-20 06:33:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:41,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:41,493 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:41,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:41,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:41,514 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:41,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:41,516 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-10-20 06:33:41,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:41,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306103242] [2020-10-20 06:33:41,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:41,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:41,537 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:41,546 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:41,548 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:41,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:41,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-10-20 06:33:41,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:33:41,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912582721] [2020-10-20 06:33:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:33:41,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:41,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:33:41,578 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:33:41,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:33:41,647 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:41,648 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:41,648 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:41,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:41,649 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-20 06:33:41,649 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:41,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:41,650 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:41,665 INFO L133 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2020-10-20 06:33:41,665 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:41,666 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:41,724 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 06:33:41,741 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 06:33:41,746 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 06:33:41,847 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:41,849 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 06:33:41,857 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:41,857 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:41,867 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:41,867 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 06:33:41,895 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:41,895 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:41,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-20 06:33:41,906 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 06:33:41,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-20 06:33:41,933 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 06:33:41,972 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-20 06:33:41,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-10-20 06:33:42,002 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-20 06:33:42,004 INFO L210 LassoAnalysis]: Preferences: [2020-10-20 06:33:42,005 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-20 06:33:42,005 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-20 06:33:42,005 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-20 06:33:42,005 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-20 06:33:42,005 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-20 06:33:42,005 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-20 06:33:42,005 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-20 06:33:42,006 INFO L133 ssoRankerPreferences]: Filename of dumped script: Waldkirch.c_Iteration1_Loop [2020-10-20 06:33:42,006 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-20 06:33:42,006 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-20 06:33:42,007 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 06:33:42,013 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 06:33:42,018 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 06:33:42,080 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-20 06:33:42,087 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 06:33:42,106 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 06:33:42,109 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:42,110 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:42,110 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:42,110 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:42,116 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:42,116 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 06:33:42,123 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 [2020-10-20 06:33:42,166 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 06:33:42,168 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:42,168 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:42,168 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:42,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:42,173 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-20 06:33:42,173 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-10-20 06:33:42,181 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 06:33:42,228 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 06:33:42,230 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-20 06:33:42,231 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-20 06:33:42,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-20 06:33:42,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-20 06:33:42,232 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-20 06:33:42,233 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-20 06:33:42,234 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-20 06:33:42,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-20 06:33:42,242 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-20 06:33:42,242 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-10-20 06:33:42,249 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-20 06:33:42,249 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-20 06:33:42,249 INFO L510 LassoAnalysis]: Proved termination. [2020-10-20 06:33:42,250 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2020-10-20 06:33:42,285 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-20 06:33:42,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:33:42,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:42,326 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:33:42,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:42,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:33:42,337 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:33:42,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:33:42,338 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 06:33:42,356 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 06:33:42,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-10-20 06:33:42,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-10-20 06:33:42,398 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 [2020-10-20 06:33:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-10-20 06:33:42,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-10-20 06:33:42,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-10-20 06:33:42,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:42,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-10-20 06:33:42,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:42,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-10-20 06:33:42,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-20 06:33:42,403 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2020-10-20 06:33:42,406 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:33:42,408 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-20 06:33:42,408 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-20 06:33:42,409 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-20 06:33:42,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-20 06:33:42,409 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-20 06:33:42,409 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:33:42,409 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:33:42,409 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:33:42,410 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-20 06:33:42,410 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:33:42,410 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-20 06:33:42,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-20 06:33:42,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.10 06:33:42 BoogieIcfgContainer [2020-10-20 06:33:42,415 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-20 06:33:42,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:33:42,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:33:42,415 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:33:42,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:33:41" (3/4) ... [2020-10-20 06:33:42,419 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:33:42,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:33:42,421 INFO L168 Benchmark]: Toolchain (without parser) took 1658.73 ms. Allocated memory was 35.7 MB in the beginning and 47.7 MB in the end (delta: 12.1 MB). Free memory was 9.4 MB in the beginning and 13.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 7.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,422 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory is still 14.1 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:33:42,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.24 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 8.5 MB in the beginning and 28.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,424 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 44.6 MB. Free memory was 28.7 MB in the beginning and 27.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,424 INFO L168 Benchmark]: Boogie Preprocessor took 14.17 ms. Allocated memory is still 44.6 MB. Free memory was 27.2 MB in the beginning and 26.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,425 INFO L168 Benchmark]: RCFGBuilder took 186.19 ms. Allocated memory is still 44.6 MB. Free memory was 26.0 MB in the beginning and 17.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,426 INFO L168 Benchmark]: BuchiAutomizer took 1115.74 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 17.7 MB in the beginning and 14.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,427 INFO L168 Benchmark]: Witness Printer took 3.84 ms. Allocated memory is still 47.7 MB. Free memory was 14.1 MB in the beginning and 13.8 MB in the end (delta: 331.6 kB). Peak memory consumption was 331.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:33:42,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 35.1 MB. Free memory is still 14.1 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 302.24 ms. Allocated memory was 35.7 MB in the beginning and 44.6 MB in the end (delta: 8.9 MB). Free memory was 8.5 MB in the beginning and 28.7 MB in the end (delta: -20.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 26.88 ms. Allocated memory is still 44.6 MB. Free memory was 28.7 MB in the beginning and 27.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 14.17 ms. Allocated memory is still 44.6 MB. Free memory was 27.2 MB in the beginning and 26.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 14.3 GB. * RCFGBuilder took 186.19 ms. Allocated memory is still 44.6 MB. Free memory was 26.0 MB in the beginning and 17.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 14.3 GB. * BuchiAutomizer took 1115.74 ms. Allocated memory was 44.6 MB in the beginning and 47.7 MB in the end (delta: 3.1 MB). Free memory was 17.7 MB in the beginning and 14.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 6.4 MB. Max. memory is 14.3 GB. * Witness Printer took 3.84 ms. Allocated memory is still 47.7 MB. Free memory was 14.1 MB in the beginning and 13.8 MB in the end (delta: 331.6 kB). Peak memory consumption was 331.6 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 4 SDtfs, 4 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: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...