./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/up.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/loop-invgen/up.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 2f739a541a2f165cc1e3264d0498c21db4812ed5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:07:55,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:07:55,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:07:55,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:07:55,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:07:55,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:07:55,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:07:55,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:07:55,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:07:55,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:07:55,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:07:55,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:07:55,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:07:55,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:07:55,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:07:55,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:07:55,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:07:55,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:07:55,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:07:55,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:07:55,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:07:55,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:07:55,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:07:55,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:07:55,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:07:55,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:07:55,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:07:55,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:07:55,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:07:55,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:07:55,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:07:55,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:07:55,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:07:55,694 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:07:55,695 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:07:55,696 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:07:55,696 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:07:55,696 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:07:55,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:07:55,697 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:07:55,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:07:55,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:07:55,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:07:55,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:07:55,721 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:07:55,721 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:07:55,721 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:07:55,721 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:07:55,722 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:07:55,722 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:07:55,722 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:07:55,722 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:07:55,722 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:07:55,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:07:55,723 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:07:55,723 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:07:55,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:07:55,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:07:55,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:07:55,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:07:55,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:07:55,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:07:55,725 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:07:55,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:07:55,725 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:07:55,725 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:07:55,726 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:07:55,726 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:07:55,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:07:55,726 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:07:55,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:07:55,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:07:55,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:07:55,727 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:07:55,728 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:07:55,728 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f739a541a2f165cc1e3264d0498c21db4812ed5 [2020-07-29 02:07:56,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:07:56,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:07:56,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:07:56,059 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:07:56,062 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:07:56,063 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/up.i [2020-07-29 02:07:56,122 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb047b6e/ebc0d130d36e46d4b7765d4277cd9d0e/FLAGf5c4b04bd [2020-07-29 02:07:56,558 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:07:56,559 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/up.i [2020-07-29 02:07:56,565 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb047b6e/ebc0d130d36e46d4b7765d4277cd9d0e/FLAGf5c4b04bd [2020-07-29 02:07:56,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/feb047b6e/ebc0d130d36e46d4b7765d4277cd9d0e [2020-07-29 02:07:56,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:07:57,001 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:07:57,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:07:57,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:07:57,006 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:07:57,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:07:56" (1/1) ... [2020-07-29 02:07:57,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a438851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57, skipping insertion in model container [2020-07-29 02:07:57,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:07:56" (1/1) ... [2020-07-29 02:07:57,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:07:57,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:07:57,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:07:57,258 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:07:57,281 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:07:57,295 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:07:57,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57 WrapperNode [2020-07-29 02:07:57,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:07:57,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:07:57,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:07:57,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:07:57,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:07:57,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:07:57,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:07:57,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:07:57,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,412 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (1/1) ... [2020-07-29 02:07:57,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:07:57,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:07:57,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:07:57,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:07:57,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (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 [2020-07-29 02:07:57,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:07:57,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:07:57,742 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:07:57,742 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-29 02:07:57,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:07:57 BoogieIcfgContainer [2020-07-29 02:07:57,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:07:57,753 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:07:57,754 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:07:57,759 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:07:57,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:07:57,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:07:56" (1/3) ... [2020-07-29 02:07:57,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65efd2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:07:57, skipping insertion in model container [2020-07-29 02:07:57,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:07:57,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:07:57" (2/3) ... [2020-07-29 02:07:57,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@65efd2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:07:57, skipping insertion in model container [2020-07-29 02:07:57,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:07:57,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:07:57" (3/3) ... [2020-07-29 02:07:57,763 INFO L371 chiAutomizerObserver]: Analyzing ICFG up.i [2020-07-29 02:07:57,805 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:07:57,806 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:07:57,806 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:07:57,806 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:07:57,806 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:07:57,806 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:07:57,806 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:07:57,807 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:07:57,816 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-07-29 02:07:57,837 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 02:07:57,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:57,837 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:57,841 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 02:07:57,841 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 02:07:57,842 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:07:57,842 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-07-29 02:07:57,844 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 02:07:57,844 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:57,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:57,845 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 02:07:57,845 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 02:07:57,851 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 7#L18-2true [2020-07-29 02:07:57,851 INFO L796 eck$LassoCheckResult]: Loop: 7#L18-2true assume !!(main_~i~0 < main_~n~0);main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1;main_#t~post2 := main_~k~0;main_~k~0 := 1 + main_#t~post2;havoc main_#t~post2; 7#L18-2true [2020-07-29 02:07:57,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:57,855 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 02:07:57,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:57,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869498224] [2020-07-29 02:07:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:57,924 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:57,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:57,942 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:57,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:57,944 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 02:07:57,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:57,945 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051867711] [2020-07-29 02:07:57,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:57,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:57,956 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:57,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:57,963 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:57,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:57,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 02:07:57,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:57,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033339] [2020-07-29 02:07:57,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:57,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:57,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:57,982 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:58,052 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:07:58,053 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:07:58,053 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:07:58,053 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:07:58,053 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:07:58,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:07:58,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:07:58,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2020-07-29 02:07:58,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:07:58,054 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:07:58,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,264 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:07:58,265 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) [2020-07-29 02:07:58,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:58,274 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 [2020-07-29 02:07:58,283 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:07:58,283 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=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) [2020-07-29 02:07:58,319 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:58,319 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 [2020-07-29 02:07:58,323 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:07:58,324 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1=0} Honda state: {ULTIMATE.start_main_#t~post1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,358 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:58,359 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 [2020-07-29 02:07:58,394 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:07:58,394 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:07:58,413 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:07:58,414 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=1}, {ULTIMATE.start_main_~k~0=5}, {ULTIMATE.start_main_~k~0=-5}] Lambdas: [1, 2, 1] Nus: [0, 1] 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,453 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:58,454 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:07:58,510 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:07:58,510 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,708 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 02:07:58,710 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:07:58,710 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:07:58,710 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:07:58,711 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:07:58,711 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 02:07:58,711 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,711 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:07:58,711 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:07:58,712 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration1_Loop [2020-07-29 02:07:58,712 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:07:58,712 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:07:58,719 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:58,872 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:07:58,879 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-07-29 02:07:58,892 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 [2020-07-29 02:07:58,894 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:07:58,895 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:07:58,895 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:07:58,895 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:07:58,896 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:07:58,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:07:58,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,906 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:07:58,961 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 [2020-07-29 02:07:58,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:07:58,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:07:58,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:07:58,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:07:58,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:07:58,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:07:58,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:58,968 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 [2020-07-29 02:07:59,006 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 [2020-07-29 02:07:59,009 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:07:59,009 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:07:59,009 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:07:59,009 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:07:59,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:07:59,011 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:07:59,011 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 02:07:59,014 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 [2020-07-29 02:07:59,037 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 [2020-07-29 02:07:59,045 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:07:59,045 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:07:59,045 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:07:59,045 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:07:59,045 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:07:59,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:07:59,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 02:07:59,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 02:07:59,058 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 02:07:59,059 INFO L444 ModelExtractionUtils]: 1 out of 4 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:07:59,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 02:07:59,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 02:07:59,070 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 02:07:59,071 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:59,100 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 02:07:59,104 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < main_~n~0);main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1;main_#t~post2 := main_~k~0;main_~k~0 := 1 + main_#t~post2;havoc main_#t~post2;" [2020-07-29 02:07:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:59,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:59,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 02:07:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:59,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:07:59,157 INFO L280 TraceCheckUtils]: 0: Hoare triple {20#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {20#unseeded} is VALID [2020-07-29 02:07:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:59,163 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 02:07:59,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:59,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:07:59,168 INFO L280 TraceCheckUtils]: 0: Hoare triple {23#(>= oldRank0 (+ ULTIMATE.start_main_~n~0 (* (- 1) ULTIMATE.start_main_~i~0)))} assume !!(main_~i~0 < main_~n~0);main_#t~post1 := main_~i~0;main_~i~0 := 1 + main_#t~post1;havoc main_#t~post1;main_#t~post2 := main_~k~0;main_~k~0 := 1 + main_#t~post2;havoc main_#t~post2; {33#(or (and (> oldRank0 (+ ULTIMATE.start_main_~n~0 (* (- 1) ULTIMATE.start_main_~i~0))) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 02:07:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:07:59,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 02:07:59,186 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:07:59,188 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,191 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,196 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 [2020-07-29 02:07:59,198 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 2 states. [2020-07-29 02:07:59,274 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 2 states. Result 27 states and 37 transitions. Complement of second has 5 states. [2020-07-29 02:07:59,274 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 [2020-07-29 02:07:59,274 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:07:59,274 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2020-07-29 02:07:59,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 02:07:59,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:59,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:59,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 02:07:59,281 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 02:07:59,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:59,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:59,282 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2020-07-29 02:07:59,284 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:07:59,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:59,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:59,286 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 10 states. [2020-07-29 02:07:59,288 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 02:07:59,289 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 5 examples of accepted words. [2020-07-29 02:07:59,289 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 02:07:59,292 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 02:07:59,292 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 02:07:59,293 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 27 states and 37 transitions. cyclomatic complexity: 14 [2020-07-29 02:07:59,293 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 02:07:59,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,296 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,296 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,297 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,297 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 27 letters. Loop has 27 letters. [2020-07-29 02:07:59,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 27 letters. Loop has 27 letters. [2020-07-29 02:07:59,298 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 27 letters. Loop has 27 letters. [2020-07-29 02:07:59,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 10 letters. Loop has 10 letters. [2020-07-29 02:07:59,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 10 letters. Loop has 10 letters. [2020-07-29 02:07:59,299 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 10 letters. Loop has 10 letters. [2020-07-29 02:07:59,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 02:07:59,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 02:07:59,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 4 letters. [2020-07-29 02:07:59,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:07:59,302 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:07:59,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:07:59,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:07:59,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:07:59,304 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,304 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:07:59,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 5 letters. Loop has 4 letters. [2020-07-29 02:07:59,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 4 letters. [2020-07-29 02:07:59,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 4 letters. [2020-07-29 02:07:59,306 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,306 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:59,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:59,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:59,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:07:59,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:07:59,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:07:59,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:07:59,312 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:07:59,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:07:59,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 27 states and 37 transitions. cyclomatic complexity: 14 Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:07:59,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,314 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:07:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 02:07:59,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 24 transitions. [2020-07-29 02:07:59,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:07:59,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:07:59,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,319 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 24 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:07:59,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:07:59,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 37 transitions. cyclomatic complexity: 14 [2020-07-29 02:07:59,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:07:59,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 7 states and 9 transitions. [2020-07-29 02:07:59,329 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-29 02:07:59,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-29 02:07:59,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-07-29 02:07:59,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:07:59,331 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-29 02:07:59,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-07-29 02:07:59,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-29 02:07:59,357 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 02:07:59,358 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states and 9 transitions. Second operand 7 states. [2020-07-29 02:07:59,358 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states and 9 transitions. Second operand 7 states. [2020-07-29 02:07:59,361 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand 7 states. [2020-07-29 02:07:59,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:07:59,365 INFO L93 Difference]: Finished difference Result 7 states and 9 transitions. [2020-07-29 02:07:59,365 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2020-07-29 02:07:59,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:07:59,366 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:07:59,366 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 7 states and 9 transitions. [2020-07-29 02:07:59,366 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 7 states and 9 transitions. [2020-07-29 02:07:59,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:07:59,367 INFO L93 Difference]: Finished difference Result 7 states and 9 transitions. [2020-07-29 02:07:59,368 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2020-07-29 02:07:59,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 02:07:59,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 02:07:59,369 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 02:07:59,369 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 02:07:59,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 02:07:59,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2020-07-29 02:07:59,371 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-29 02:07:59,371 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-07-29 02:07:59,372 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:07:59,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2020-07-29 02:07:59,372 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:07:59,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:07:59,373 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:07:59,373 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-07-29 02:07:59,373 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 02:07:59,373 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; 76#L18-2 assume !(main_~i~0 < main_~n~0); 72#L18-3 main_~j~0 := 0; 73#L23-2 [2020-07-29 02:07:59,374 INFO L796 eck$LassoCheckResult]: Loop: 73#L23-2 assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 75#L7 assume !(0 == __VERIFIER_assert_~cond); 74#L7-2 main_#t~post3 := main_~j~0;main_~j~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := main_#t~post4 - 1;havoc main_#t~post4; 73#L23-2 [2020-07-29 02:07:59,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:59,374 INFO L82 PathProgramCache]: Analyzing trace with hash 31014, now seen corresponding path program 1 times [2020-07-29 02:07:59,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:59,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114055005] [2020-07-29 02:07:59,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:59,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:59,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:59,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:59,383 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:59,385 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:59,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:59,385 INFO L82 PathProgramCache]: Analyzing trace with hash 52857, now seen corresponding path program 1 times [2020-07-29 02:07:59,385 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:59,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246302475] [2020-07-29 02:07:59,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:59,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:59,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:07:59,400 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:07:59,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:07:59,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:07:59,403 INFO L82 PathProgramCache]: Analyzing trace with hash 923961140, now seen corresponding path program 1 times [2020-07-29 02:07:59,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:07:59,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228040084] [2020-07-29 02:07:59,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:07:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:07:59,483 INFO L280 TraceCheckUtils]: 0: Hoare triple {100#true} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {102#(<= ULTIMATE.start_main_~i~0 0)} is VALID [2020-07-29 02:07:59,484 INFO L280 TraceCheckUtils]: 1: Hoare triple {102#(<= ULTIMATE.start_main_~i~0 0)} assume !(main_~i~0 < main_~n~0); {103#(<= ULTIMATE.start_main_~n~0 0)} is VALID [2020-07-29 02:07:59,485 INFO L280 TraceCheckUtils]: 2: Hoare triple {103#(<= ULTIMATE.start_main_~n~0 0)} main_~j~0 := 0; {104#(<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0)} is VALID [2020-07-29 02:07:59,486 INFO L280 TraceCheckUtils]: 3: Hoare triple {104#(<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0)} assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {101#false} is VALID [2020-07-29 02:07:59,486 INFO L280 TraceCheckUtils]: 4: Hoare triple {101#false} assume !(0 == __VERIFIER_assert_~cond); {101#false} is VALID [2020-07-29 02:07:59,487 INFO L280 TraceCheckUtils]: 5: Hoare triple {101#false} main_#t~post3 := main_~j~0;main_~j~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := main_#t~post4 - 1;havoc main_#t~post4; {101#false} is VALID [2020-07-29 02:07:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:07:59,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228040084] [2020-07-29 02:07:59,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 02:07:59,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-29 02:07:59,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924369659] [2020-07-29 02:07:59,572 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:07:59,573 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:07:59,573 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:07:59,573 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:07:59,573 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:07:59,573 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:59,574 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:07:59,574 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:07:59,574 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2020-07-29 02:07:59,574 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:07:59,574 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:07:59,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:59,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:59,602 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:59,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:59,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:07:59,754 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:07:59,754 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:59,765 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:59,765 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:07:59,771 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:07:59,771 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:07:59,807 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:07:59,807 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:07:59,852 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:07:59,852 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:08:00,015 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 02:08:00,018 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:08:00,018 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:08:00,018 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:08:00,018 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:08:00,018 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 02:08:00,018 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:08:00,018 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:08:00,018 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:08:00,019 INFO L133 ssoRankerPreferences]: Filename of dumped script: up.i_Iteration2_Loop [2020-07-29 02:08:00,019 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:08:00,019 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:08:00,027 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:08:00,035 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:08:00,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:08:00,054 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:08:00,062 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:08:00,214 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:08:00,215 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:08:00,219 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 [2020-07-29 02:08:00,222 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:08:00,222 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:08:00,222 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:08:00,222 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:08:00,222 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:08:00,224 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:08:00,224 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:08:00,227 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:08:00,274 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 [2020-07-29 02:08:00,276 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:08:00,276 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:08:00,276 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:08:00,276 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:08:00,276 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:08:00,277 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:08:00,278 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 02:08:00,280 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 02:08:00,288 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 02:08:00,288 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:08:00,299 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 02:08:00,300 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 02:08:00,300 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 02:08:00,300 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:08:00,336 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 02:08:00,339 INFO L393 LassoCheck]: Loop: "assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;" "assume !(0 == __VERIFIER_assert_~cond);" "main_#t~post3 := main_~j~0;main_~j~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := main_#t~post4 - 1;havoc main_#t~post4;" [2020-07-29 02:08:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:08:00,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:08:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:08:00,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 02:08:00,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:08:00,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:08:00,370 INFO L280 TraceCheckUtils]: 0: Hoare triple {105#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~post1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;main_~i~0 := 0;main_~k~0 := 0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {105#unseeded} is VALID [2020-07-29 02:08:00,371 INFO L280 TraceCheckUtils]: 1: Hoare triple {105#unseeded} assume !(main_~i~0 < main_~n~0); {105#unseeded} is VALID [2020-07-29 02:08:00,372 INFO L280 TraceCheckUtils]: 2: Hoare triple {105#unseeded} main_~j~0 := 0; {105#unseeded} is VALID [2020-07-29 02:08:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:08:00,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 02:08:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:08:00,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:08:00,406 INFO L280 TraceCheckUtils]: 0: Hoare triple {108#(>= oldRank0 (+ ULTIMATE.start_main_~n~0 (* (- 1) ULTIMATE.start_main_~j~0)))} assume !!(main_~j~0 < main_~n~0);__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {129#(and (<= ULTIMATE.start_main_~n~0 (+ oldRank0 ULTIMATE.start_main_~j~0)) (< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~n~0))} is VALID [2020-07-29 02:08:00,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {129#(and (<= ULTIMATE.start_main_~n~0 (+ oldRank0 ULTIMATE.start_main_~j~0)) (< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~n~0))} assume !(0 == __VERIFIER_assert_~cond); {129#(and (<= ULTIMATE.start_main_~n~0 (+ oldRank0 ULTIMATE.start_main_~j~0)) (< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~n~0))} is VALID [2020-07-29 02:08:00,408 INFO L280 TraceCheckUtils]: 2: Hoare triple {129#(and (<= ULTIMATE.start_main_~n~0 (+ oldRank0 ULTIMATE.start_main_~j~0)) (< ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~n~0))} main_#t~post3 := main_~j~0;main_~j~0 := 1 + main_#t~post3;havoc main_#t~post3;main_#t~post4 := main_~k~0;main_~k~0 := main_#t~post4 - 1;havoc main_#t~post4; {118#(or unseeded (and (> oldRank0 (+ ULTIMATE.start_main_~n~0 (* (- 1) ULTIMATE.start_main_~j~0))) (>= oldRank0 0)))} is VALID [2020-07-29 02:08:00,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:08:00,409 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:08:00,417 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:08:00,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,417 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-29 02:08:00,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2020-07-29 02:08:00,441 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 4 states. [2020-07-29 02:08:00,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 02:08:00,441 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:08:00,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. cyclomatic complexity: 4 [2020-07-29 02:08:00,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:08:00,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:08:00,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 02:08:00,444 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 02:08:00,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:08:00,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:08:00,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2020-07-29 02:08:00,445 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:08:00,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:08:00,445 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 7 states and 9 transitions. cyclomatic complexity: 4 [2020-07-29 02:08:00,446 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 02:08:00,446 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 02:08:00,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-07-29 02:08:00,447 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 02:08:00,448 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 10 states and 13 transitions. cyclomatic complexity: 5 [2020-07-29 02:08:00,448 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. cyclomatic complexity: 5 [2020-07-29 02:08:00,448 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:08:00,448 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 02:08:00,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,449 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,449 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:08:00,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:08:00,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:08:00,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 10 letters. Loop has 10 letters. [2020-07-29 02:08:00,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 10 letters. Loop has 10 letters. [2020-07-29 02:08:00,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 10 letters. Loop has 10 letters. [2020-07-29 02:08:00,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 7 letters. Loop has 7 letters. [2020-07-29 02:08:00,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 02:08:00,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 7 letters. Loop has 7 letters. [2020-07-29 02:08:00,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,457 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,457 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:08:00,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:08:00,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 5 letters. Loop has 3 letters. [2020-07-29 02:08:00,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:08:00,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:08:00,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 4 letters. Loop has 3 letters. [2020-07-29 02:08:00,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 9 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:08:00,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:08:00,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,461 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 13 transitions. cyclomatic complexity: 5 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:08:00,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,462 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:08:00,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 02:08:00,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-07-29 02:08:00,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:08:00,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2020-07-29 02:08:00,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2020-07-29 02:08:00,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:08:00,465 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. cyclomatic complexity: 5 [2020-07-29 02:08:00,466 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:08:00,466 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2020-07-29 02:08:00,466 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 02:08:00,467 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 02:08:00,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 02:08:00,467 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:08:00,467 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:08:00,467 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:08:00,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 02:08:00,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-29 02:08:00,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-29 02:08:00,471 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2020-07-29 02:08:00,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 02:08:00,472 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-29 02:08:00,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-29 02:08:00,472 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-29 02:08:00,482 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:08:00,482 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2020-07-29 02:08:00,482 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:08:00,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2020-07-29 02:08:00,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 02:08:00,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 02:08:00,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 02:08:00,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:08:00,483 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:08:00,483 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:08:00,483 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:08:00,483 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 02:08:00,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 02:08:00,484 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:08:00,484 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:08:00,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:08:00 BoogieIcfgContainer [2020-07-29 02:08:00,491 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:08:00,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:08:00,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:08:00,492 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:08:00,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:07:57" (3/4) ... [2020-07-29 02:08:00,497 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 02:08:00,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:08:00,500 INFO L168 Benchmark]: Toolchain (without parser) took 3500.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 952.2 MB in the beginning and 838.4 MB in the end (delta: 113.8 MB). Peak memory consumption was 260.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:08:00,501 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:08:00,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.53 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 02:08:00,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:08:00,504 INFO L168 Benchmark]: Boogie Preprocessor took 24.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:08:00,505 INFO L168 Benchmark]: RCFGBuilder took 331.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2020-07-29 02:08:00,506 INFO L168 Benchmark]: BuchiAutomizer took 2738.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 838.4 MB in the end (delta: 279.0 MB). Peak memory consumption was 279.0 MB. Max. memory is 11.5 GB. [2020-07-29 02:08:00,506 INFO L168 Benchmark]: Witness Printer took 5.25 ms. Allocated memory is still 1.2 GB. Free memory is still 838.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:08:00,511 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 295.53 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 90.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -199.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2738.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 838.4 MB in the end (delta: 279.0 MB). Peak memory consumption was 279.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.25 ms. Allocated memory is still 1.2 GB. Free memory is still 838.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function n + -1 * j and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 15 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax100 hnf100 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...