./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 208a8efcd2fd6b8ea52a20177afd9722587411ce ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 18:15:20,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 18:15:20,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 18:15:20,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 18:15:20,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 18:15:20,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 18:15:20,667 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 18:15:20,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 18:15:20,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 18:15:20,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 18:15:20,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 18:15:20,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 18:15:20,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 18:15:20,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 18:15:20,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 18:15:20,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 18:15:20,675 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 18:15:20,675 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 18:15:20,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 18:15:20,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 18:15:20,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 18:15:20,693 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 18:15:20,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 18:15:20,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 18:15:20,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 18:15:20,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 18:15:20,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 18:15:20,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 18:15:20,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 18:15:20,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 18:15:20,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 18:15:20,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 18:15:20,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 18:15:20,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 18:15:20,709 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 18:15:20,709 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 18:15:20,710 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 18:15:20,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 18:15:20,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 18:15:20,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 18:15:20,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 18:15:20,712 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-07-06 18:15:20,748 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 18:15:20,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 18:15:20,751 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 18:15:20,751 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 18:15:20,752 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 18:15:20,752 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 18:15:20,752 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 18:15:20,752 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 18:15:20,752 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 18:15:20,752 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 18:15:20,753 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 18:15:20,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 18:15:20,753 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 18:15:20,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 18:15:20,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 18:15:20,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 18:15:20,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 18:15:20,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 18:15:20,755 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 18:15:20,755 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 18:15:20,756 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 18:15:20,756 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 208a8efcd2fd6b8ea52a20177afd9722587411ce [2021-07-06 18:15:21,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 18:15:21,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 18:15:21,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 18:15:21,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 18:15:21,061 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 18:15:21,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2021-07-06 18:15:21,105 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ecaa22f8/3ec4498553214d4490d3dac9fbbf747e/FLAGee50d876b [2021-07-06 18:15:21,438 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 18:15:21,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/4NestedWith3Variables-1.c [2021-07-06 18:15:21,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ecaa22f8/3ec4498553214d4490d3dac9fbbf747e/FLAGee50d876b [2021-07-06 18:15:21,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ecaa22f8/3ec4498553214d4490d3dac9fbbf747e [2021-07-06 18:15:21,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 18:15:21,893 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 18:15:21,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 18:15:21,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 18:15:21,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 18:15:21,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:15:21" (1/1) ... [2021-07-06 18:15:21,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@361757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:21, skipping insertion in model container [2021-07-06 18:15:21,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 06:15:21" (1/1) ... [2021-07-06 18:15:21,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 18:15:21,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 18:15:21,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:15:22,001 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 18:15:22,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 18:15:22,021 INFO L208 MainTranslator]: Completed translation [2021-07-06 18:15:22,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22 WrapperNode [2021-07-06 18:15:22,022 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 18:15:22,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 18:15:22,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 18:15:22,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 18:15:22,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 18:15:22,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 18:15:22,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 18:15:22,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 18:15:22,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,066 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,073 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 18:15:22,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 18:15:22,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 18:15:22,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 18:15:22,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (1/1) ... [2021-07-06 18:15:22,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:22,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:22,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:22,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 18:15:22,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 18:15:22,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 18:15:22,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 18:15:22,294 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-07-06 18:15:22,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:22 BoogieIcfgContainer [2021-07-06 18:15:22,296 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 18:15:22,297 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 18:15:22,297 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 18:15:22,299 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 18:15:22,300 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:22,300 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 06:15:21" (1/3) ... [2021-07-06 18:15:22,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e039801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:15:22, skipping insertion in model container [2021-07-06 18:15:22,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:22,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 06:15:22" (2/3) ... [2021-07-06 18:15:22,302 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e039801 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 06:15:22, skipping insertion in model container [2021-07-06 18:15:22,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 18:15:22,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:22" (3/3) ... [2021-07-06 18:15:22,303 INFO L389 chiAutomizerObserver]: Analyzing ICFG 4NestedWith3Variables-1.c [2021-07-06 18:15:22,358 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 18:15:22,358 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 18:15:22,358 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 18:15:22,358 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 18:15:22,358 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 18:15:22,359 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 18:15:22,359 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 18:15:22,359 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 18:15:22,368 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:15:22,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:15:22,380 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:15:22,380 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:15:22,383 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-07-06 18:15:22,383 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:15:22,384 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 18:15:22,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:15:22,385 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2021-07-06 18:15:22,385 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 18:15:22,385 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 18:15:22,385 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-07-06 18:15:22,386 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1] [2021-07-06 18:15:22,390 INFO L791 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~a~0, main_~b~0, main_~q~0, main_~olda~0;havoc main_~a~0;havoc main_~b~0;havoc main_~q~0;havoc main_~olda~0;main_~q~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23true assume !!(-524287 <= main_~q~0 && main_~q~0 <= 524287); 8#L24true assume !!(-524287 <= main_~a~0 && main_~a~0 <= 524287); 11#L25true assume !!(-524287 <= main_~b~0 && main_~b~0 <= 524287); 9#L26-2true [2021-07-06 18:15:22,391 INFO L793 eck$LassoCheckResult]: Loop: 9#L26-2true assume !!(main_~q~0 > 0);main_~q~0 := main_~q~0 + main_~a~0 - 1;main_~olda~0 := main_~a~0;main_~a~0 := 3 * main_~olda~0 - 4 * main_~b~0;main_~b~0 := 4 * main_~olda~0 + 3 * main_~b~0; 9#L26-2true [2021-07-06 18:15:22,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:22,395 INFO L82 PathProgramCache]: Analyzing trace with hash 959435, now seen corresponding path program 1 times [2021-07-06 18:15:22,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:22,410 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045885867] [2021-07-06 18:15:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:22,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,468 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,479 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,493 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:22,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:22,498 INFO L82 PathProgramCache]: Analyzing trace with hash 56, now seen corresponding path program 1 times [2021-07-06 18:15:22,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:22,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475667084] [2021-07-06 18:15:22,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:22,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,510 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,522 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,524 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:22,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:22,526 INFO L82 PathProgramCache]: Analyzing trace with hash 29742510, now seen corresponding path program 1 times [2021-07-06 18:15:22,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 18:15:22,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948463727] [2021-07-06 18:15:22,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 18:15:22,527 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 18:15:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,545 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 18:15:22,558 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 18:15:22,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 18:15:22,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:22,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-06 18:15:22,663 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:15:22,677 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:15:22,677 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:15:22,677 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:15:22,677 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-07-06 18:15:22,677 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:22,677 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:15:22,677 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:15:22,677 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2021-07-06 18:15:22,677 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:15:22,678 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:15:22,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:22,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:22,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:22,830 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:15:22,831 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-07-06 18:15:22,832 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:22,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:22,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:22,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-07-06 18:15:22,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:22,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:23,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:23,263 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:15:23,279 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-07-06 18:15:23,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:23,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:23,281 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:23,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-07-06 18:15:23,285 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:23,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:23,300 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-07-06 18:15:23,300 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-07-06 18:15:23,316 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:23,317 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:23,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:23,318 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:23,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-07-06 18:15:23,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-07-06 18:15:23,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:23,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:23,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:23,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:23,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:23,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-07-06 18:15:23,363 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-07-06 18:15:23,363 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-07-06 18:15:35,386 INFO L442 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2021-07-06 18:15:35,393 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,394 INFO L210 LassoAnalysis]: Preferences: [2021-07-06 18:15:35,394 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-07-06 18:15:35,394 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-07-06 18:15:35,394 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-07-06 18:15:35,395 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-07-06 18:15:35,395 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,395 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-07-06 18:15:35,395 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-07-06 18:15:35,395 INFO L133 ssoRankerPreferences]: Filename of dumped script: 4NestedWith3Variables-1.c_Iteration1_Loop [2021-07-06 18:15:35,395 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-07-06 18:15:35,395 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-07-06 18:15:35,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:35,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:35,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-07-06 18:15:35,516 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-07-06 18:15:35,519 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-07-06 18:15:35,520 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,521 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-07-06 18:15:35,523 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,531 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,531 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,531 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,531 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:15:35,535 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:15:35,535 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:15:35,557 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,576 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,580 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,583 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,590 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,590 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,590 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,590 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:15:35,594 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-07-06 18:15:35,594 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-07-06 18:15:35,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-07-06 18:15:35,609 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,625 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-07-06 18:15:35,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,635 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,635 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:35,636 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,636 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,636 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-07-06 18:15:35,640 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-07-06 18:15:35,640 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:35,650 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,668 INFO L490 LassoAnalysis]: Using template '2-nested'. [2021-07-06 18:15:35,668 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,669 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-07-06 18:15:35,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,679 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,679 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,679 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,679 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-07-06 18:15:35,683 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-07-06 18:15:35,683 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-07-06 18:15:35,695 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,712 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,713 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2021-07-06 18:15:35,716 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,724 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,724 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,724 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,724 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-07-06 18:15:35,727 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2021-07-06 18:15:35,727 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2021-07-06 18:15:35,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,762 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,762 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2021-07-06 18:15:35,772 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,780 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,780 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:35,781 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,781 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,781 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2021-07-06 18:15:35,784 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2021-07-06 18:15:35,784 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:35,804 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,827 INFO L490 LassoAnalysis]: Using template '3-nested'. [2021-07-06 18:15:35,827 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,829 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,840 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,847 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,847 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,847 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,847 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-07-06 18:15:35,854 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-07-06 18:15:35,854 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-07-06 18:15:35,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2021-07-06 18:15:35,867 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,885 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,886 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,887 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2021-07-06 18:15:35,905 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,912 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,912 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,912 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,912 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-07-06 18:15:35,916 INFO L401 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2021-07-06 18:15:35,916 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2021-07-06 18:15:35,928 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:35,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:35,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:35,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:35,954 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:35,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-07-06 18:15:35,957 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:35,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:35,965 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:35,966 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:35,966 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:35,966 INFO L205 nArgumentSynthesizer]: 4 template conjuncts. [2021-07-06 18:15:35,969 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2021-07-06 18:15:35,969 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:35,984 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:36,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:36,004 INFO L490 LassoAnalysis]: Using template '4-nested'. [2021-07-06 18:15:36,004 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:36,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:36,005 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:36,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-07-06 18:15:36,007 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:36,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:36,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:36,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:36,014 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-07-06 18:15:36,021 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-07-06 18:15:36,021 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-07-06 18:15:36,048 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:36,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:36,067 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:36,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:36,068 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:36,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-07-06 18:15:36,071 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:36,078 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:36,078 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:36,078 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:36,078 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-07-06 18:15:36,083 INFO L401 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2021-07-06 18:15:36,083 INFO L402 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2021-07-06 18:15:36,104 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-07-06 18:15:36,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:36,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:36,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:36,133 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:36,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2021-07-06 18:15:36,136 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-07-06 18:15:36,143 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-07-06 18:15:36,143 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-07-06 18:15:36,144 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-07-06 18:15:36,144 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-07-06 18:15:36,144 INFO L205 nArgumentSynthesizer]: 5 template conjuncts. [2021-07-06 18:15:36,148 INFO L401 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2021-07-06 18:15:36,148 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-07-06 18:15:36,154 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-07-06 18:15:36,167 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2021-07-06 18:15:36,167 INFO L444 ModelExtractionUtils]: 9 out of 21 variables were initially zero. Simplification set additionally 3 variables to zero. [2021-07-06 18:15:36,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 18:15:36,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 18:15:36,171 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 18:15:36,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2021-07-06 18:15:36,176 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-07-06 18:15:36,176 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-07-06 18:15:36,176 INFO L513 LassoAnalysis]: Proved termination. [2021-07-06 18:15:36,176 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function 4-nested ranking function: f0 = -16*ULTIMATE.start_main_~b~0 + 80*ULTIMATE.start_main_~q~0 - 8*ULTIMATE.start_main_~a~0 f1 = -4*ULTIMATE.start_main_~b~0 + 4*ULTIMATE.start_main_~q~0 + 2*ULTIMATE.start_main_~a~0 f2 = 1*ULTIMATE.start_main_~a~0 f3 = 1*ULTIMATE.start_main_~q~0 Supporting invariants [] [2021-07-06 18:15:36,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:36,194 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-07-06 18:15:36,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 18:15:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:15:36,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjunts are in the unsatisfiable core [2021-07-06 18:15:36,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:15:36,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,236 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,237 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,238 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,239 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,240 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,244 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,247 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 18:15:36,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 18:15:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 18:15:36,256 WARN L261 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-06 18:15:36,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-06 18:15:36,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 18:15:36,267 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 [2021-07-06 18:15:36,268 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:15:36,299 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 26 transitions. Complement of second has 5 states. [2021-07-06 18:15:36,299 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 [2021-07-06 18:15:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 18:15:36,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2021-07-06 18:15:36,302 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 1 letters. [2021-07-06 18:15:36,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:15:36,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 5 letters. Loop has 1 letters. [2021-07-06 18:15:36,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:15:36,303 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 2 letters. [2021-07-06 18:15:36,303 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-07-06 18:15:36,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2021-07-06 18:15:36,307 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:15:36,309 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2021-07-06 18:15:36,309 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-07-06 18:15:36,310 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-07-06 18:15:36,310 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-07-06 18:15:36,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 18:15:36,310 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:15:36,310 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:15:36,310 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 18:15:36,310 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 18:15:36,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-07-06 18:15:36,311 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-07-06 18:15:36,311 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-07-06 18:15:36,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 06:15:36 BoogieIcfgContainer [2021-07-06 18:15:36,315 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 18:15:36,315 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 18:15:36,315 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 18:15:36,315 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 18:15:36,316 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 06:15:22" (3/4) ... [2021-07-06 18:15:36,318 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-06 18:15:36,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 18:15:36,320 INFO L168 Benchmark]: Toolchain (without parser) took 14426.73 ms. Allocated memory was 56.6 MB in the beginning and 86.0 MB in the end (delta: 29.4 MB). Free memory was 33.4 MB in the beginning and 39.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 23.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:36,320 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.3 MB in the beginning and 37.2 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:36,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.91 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.3 MB in the beginning and 55.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:36,321 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.56 ms. Allocated memory is still 71.3 MB. Free memory was 55.4 MB in the beginning and 54.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:36,322 INFO L168 Benchmark]: Boogie Preprocessor took 14.39 ms. Allocated memory is still 71.3 MB. Free memory was 54.0 MB in the beginning and 53.1 MB in the end (delta: 939.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:36,323 INFO L168 Benchmark]: RCFGBuilder took 221.46 ms. Allocated memory is still 71.3 MB. Free memory was 53.1 MB in the beginning and 43.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:36,323 INFO L168 Benchmark]: BuchiAutomizer took 14017.78 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 43.5 MB in the beginning and 40.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. [2021-07-06 18:15:36,325 INFO L168 Benchmark]: Witness Printer took 3.79 ms. Allocated memory is still 86.0 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 18:15:36,329 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 56.6 MB. Free memory was 37.3 MB in the beginning and 37.2 MB in the end (delta: 63.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 127.91 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 33.3 MB in the beginning and 55.4 MB in the end (delta: -22.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.56 ms. Allocated memory is still 71.3 MB. Free memory was 55.4 MB in the beginning and 54.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.39 ms. Allocated memory is still 71.3 MB. Free memory was 54.0 MB in the beginning and 53.1 MB in the end (delta: 939.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 221.46 ms. Allocated memory is still 71.3 MB. Free memory was 53.1 MB in the beginning and 43.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 14017.78 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 43.5 MB in the beginning and 40.3 MB in the end (delta: 3.2 MB). Peak memory consumption was 19.7 MB. Max. memory is 16.1 GB. * Witness Printer took 3.79 ms. Allocated memory is still 86.0 MB. Free memory is still 39.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 4-nested ranking function (if -16 * b + 80 * q + -8 * a > 0 then 3 else (if 2 * a + -4 * b + 4 * q > 0 then 2 else (if a > 0 then 1 else 0))), (if -16 * b + 80 * q + -8 * a > 0 then -16 * b + 80 * q + -8 * a else (if 2 * a + -4 * b + 4 * q > 0 then 2 * a + -4 * b + 4 * q else (if a > 0 then a else q))) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 13.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 12 SDtfs, 12 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.2ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital32 mio100 ax137 hnf102 lsp73 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq196 hnf93 smp100 dnf100 smp100 tf103 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 5 MotzkinApplications: 15 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-07-06 18:15:36,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2021-07-06 18:15:36,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...