./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loop-invgen/sendmail-close-angle.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 2a51e7d7d3160b4418bb04f01bccc7314d2964c0 ........................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:13:12,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:13:12,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:13:12,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:13:12,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:13:12,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:13:12,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:13:12,944 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:13:12,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:13:12,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:13:12,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:13:12,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:13:12,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:13:12,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:13:12,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:13:12,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:13:12,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:13:12,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:13:12,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:13:12,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:13:12,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:13:12,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:13:12,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:13:12,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:13:12,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:13:12,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:13:12,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:13:12,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:13:12,978 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:13:12,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:13:12,979 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:13:12,980 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:13:12,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:13:12,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:13:12,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:13:12,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:13:12,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:13:12,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:13:12,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:13:12,985 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:13:12,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:13:12,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:13:13,013 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:13:13,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:13:13,015 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:13:13,015 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:13:13,015 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:13:13,016 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:13:13,016 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:13:13,016 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:13:13,016 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:13:13,016 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:13:13,017 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:13:13,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:13:13,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:13:13,017 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:13:13,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:13:13,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:13:13,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:13:13,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:13:13,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:13:13,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:13:13,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:13:13,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:13:13,019 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:13:13,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:13:13,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:13:13,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:13:13,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:13:13,020 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:13:13,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:13:13,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:13:13,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:13:13,021 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:13:13,022 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:13:13,023 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 -> 2a51e7d7d3160b4418bb04f01bccc7314d2964c0 [2020-10-19 19:13:13,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:13:13,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:13:13,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:13:13,370 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:13:13,370 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:13:13,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2020-10-19 19:13:13,452 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b051dd98/bbf7f1112e744247ad12229215a77d95/FLAGfdb8513cf [2020-10-19 19:13:13,840 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:13:13,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/sendmail-close-angle.i [2020-10-19 19:13:13,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b051dd98/bbf7f1112e744247ad12229215a77d95/FLAGfdb8513cf [2020-10-19 19:13:14,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b051dd98/bbf7f1112e744247ad12229215a77d95 [2020-10-19 19:13:14,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:13:14,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:13:14,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:14,225 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:13:14,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:13:14,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e09e114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14, skipping insertion in model container [2020-10-19 19:13:14,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:13:14,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:13:14,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:14,541 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:13:14,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:14,611 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:13:14,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14 WrapperNode [2020-10-19 19:13:14,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:14,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:14,613 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:13:14,613 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:13:14,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:14,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:13:14,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:13:14,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:13:14,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... [2020-10-19 19:13:14,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:13:14,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:13:14,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:13:14,749 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:13:14,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:13:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:13:14,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:13:14,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:13:15,134 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:13:15,134 INFO L298 CfgBuilder]: Removed 37 assume(true) statements. [2020-10-19 19:13:15,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:15 BoogieIcfgContainer [2020-10-19 19:13:15,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:13:15,138 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:13:15,138 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:13:15,144 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:13:15,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:15,149 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:13:14" (1/3) ... [2020-10-19 19:13:15,153 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71e89727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:15, skipping insertion in model container [2020-10-19 19:13:15,154 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:15,154 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:14" (2/3) ... [2020-10-19 19:13:15,155 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71e89727 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:15, skipping insertion in model container [2020-10-19 19:13:15,156 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:15,156 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:15" (3/3) ... [2020-10-19 19:13:15,160 INFO L373 chiAutomizerObserver]: Analyzing ICFG sendmail-close-angle.i [2020-10-19 19:13:15,250 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:13:15,250 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:13:15,251 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:13:15,251 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:13:15,251 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:13:15,251 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:13:15,252 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:13:15,252 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:13:15,271 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states. [2020-10-19 19:13:15,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-10-19 19:13:15,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:15,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:15,311 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 19:13:15,312 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:13:15,312 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:13:15,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 53 states. [2020-10-19 19:13:15,317 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 22 [2020-10-19 19:13:15,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:15,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:15,319 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2020-10-19 19:13:15,319 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:13:15,329 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 10#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_#t~post6, main_#t~post7, main_#t~nondet5, main_#t~post8, main_#t~post9, main_~in~0, main_~inlen~0, main_~bufferlen~0, main_~buf~0, main_~buflim~0;havoc main_~in~0;main_~inlen~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~bufferlen~0 := main_#t~nondet4;havoc main_#t~nondet4;havoc main_~buf~0;havoc main_~buflim~0; 51#L31true assume main_~bufferlen~0 > 1; 43#L31-1true assume main_~inlen~0 > 0; 13#L32true assume main_~bufferlen~0 < main_~inlen~0; 31#L33true main_~buf~0 := 0;main_~in~0 := 0;main_~buflim~0 := main_~bufferlen~0 - 2; 48#L18-11true [2020-10-19 19:13:15,330 INFO L796 eck$LassoCheckResult]: Loop: 48#L18-11true assume !!(0 != main_#t~nondet5);havoc main_#t~nondet5; 49#L39true assume !(main_~buf~0 == main_~buflim~0);__VERIFIER_assert_#in~cond := (if 0 <= main_~buf~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 7#L18true assume !(0 == __VERIFIER_assert_~cond); 5#L18-2true __VERIFIER_assert_#in~cond := (if main_~buf~0 < main_~bufferlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3#L18-3true assume !(0 == __VERIFIER_assert_~cond); 17#L18-5true main_#t~post6 := main_~buf~0;main_~buf~0 := 1 + main_#t~post6;havoc main_#t~post6; 33#L44true main_#t~post7 := main_~in~0;main_~in~0 := 1 + main_#t~post7;havoc main_#t~post7;__VERIFIER_assert_#in~cond := (if 0 <= main_~in~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 14#L18-6true assume !(0 == __VERIFIER_assert_~cond); 11#L18-8true __VERIFIER_assert_#in~cond := (if main_~in~0 < main_~inlen~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 50#L18-9true assume !(0 == __VERIFIER_assert_~cond); 48#L18-11true [2020-10-19 19:13:15,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:15,338 INFO L82 PathProgramCache]: Analyzing trace with hash 889510797, now seen corresponding path program 1 times [2020-10-19 19:13:15,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:15,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743805863] [2020-10-19 19:13:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:15,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:15,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:15,571 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:15,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:15,573 INFO L82 PathProgramCache]: Analyzing trace with hash -1874427736, now seen corresponding path program 1 times [2020-10-19 19:13:15,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:15,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829725724] [2020-10-19 19:13:15,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:15,610 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:15,631 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:15,635 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:15,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:15,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1648844084, now seen corresponding path program 1 times [2020-10-19 19:13:15,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:15,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215893675] [2020-10-19 19:13:15,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:15,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:15,697 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:15,715 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:15,866 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-19 19:13:15,866 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 19:13:15,871 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-19 19:13:15,872 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 19:13:15,877 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-10-19 19:13:15,878 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-19 19:13:15,960 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:15,961 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:15,961 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:15,961 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:15,962 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-19 19:13:15,962 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:15,962 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:15,962 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:15,962 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2020-10-19 19:13:15,963 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:15,963 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:15,986 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:15,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,009 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,028 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,160 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:16,161 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:16,167 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:16,167 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-19 19:13:16,177 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,225 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-19 19:13:16,225 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:16,278 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-19 19:13:16,279 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,471 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-19 19:13:16,474 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:16,474 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:16,474 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:16,474 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:16,474 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:16,474 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,474 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:16,475 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:16,475 INFO L133 ssoRankerPreferences]: Filename of dumped script: sendmail-close-angle.i_Iteration1_Loop [2020-10-19 19:13:16,475 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:16,476 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:16,478 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,490 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,512 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:16,646 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:16,652 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:16,665 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:13:16,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:16,668 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:16,669 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:16,669 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:16,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:16,674 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:16,678 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:16,718 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-10-19 19:13:16,720 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:16,721 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:16,721 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:16,721 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:16,721 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:16,724 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:16,724 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,733 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:16,740 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-19 19:13:16,740 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:16,746 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-19 19:13:16,746 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-19 19:13:16,747 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:16,748 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~in~0, ULTIMATE.start_main_~inlen~0) = -1*ULTIMATE.start_main_~in~0 + 1*ULTIMATE.start_main_~inlen~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:16,785 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-19 19:13:16,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:16,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:16,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:16,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-19 19:13:16,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:16,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:16,921 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-10-19 19:13:16,923 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 53 states. Second operand 5 states. [2020-10-19 19:13:17,077 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 53 states.. Second operand 5 states. Result 136 states and 179 transitions. Complement of second has 9 states. [2020-10-19 19:13:17,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-10-19 19:13:17,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-19 19:13:17,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2020-10-19 19:13:17,085 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 134 transitions. Stem has 6 letters. Loop has 10 letters. [2020-10-19 19:13:17,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:17,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 134 transitions. Stem has 16 letters. Loop has 10 letters. [2020-10-19 19:13:17,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:17,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 134 transitions. Stem has 6 letters. Loop has 20 letters. [2020-10-19 19:13:17,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:17,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 179 transitions. [2020-10-19 19:13:17,099 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:17,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 0 states and 0 transitions. [2020-10-19 19:13:17,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:13:17,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:13:17,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:13:17,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:17,106 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:17,106 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:17,106 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:17,107 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:13:17,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:13:17,107 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:17,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:13:17,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:13:17 BoogieIcfgContainer [2020-10-19 19:13:17,115 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:13:17,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:13:17,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:13:17,117 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:13:17,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:15" (3/4) ... [2020-10-19 19:13:17,122 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:13:17,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:13:17,126 INFO L168 Benchmark]: Toolchain (without parser) took 2909.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 950.6 MB in the beginning and 952.9 MB in the end (delta: -2.3 MB). Peak memory consumption was 128.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:17,127 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:17,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.92 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:17,129 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:17,130 INFO L168 Benchmark]: Boogie Preprocessor took 26.49 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:17,131 INFO L168 Benchmark]: RCFGBuilder took 387.99 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:17,132 INFO L168 Benchmark]: BuchiAutomizer took 1977.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.9 MB in the end (delta: 141.3 MB). Peak memory consumption was 141.3 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:17,133 INFO L168 Benchmark]: Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 952.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:17,137 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 390.92 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 939.8 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 108.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -186.9 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.49 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 387.99 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: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1977.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 952.9 MB in the end (delta: 141.3 MB). Peak memory consumption was 141.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.43 ms. Allocated memory is still 1.2 GB. Free memory is still 952.9 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * in + inlen and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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: 48 SDtfs, 54 SDslu, 83 SDs, 0 SdLazy, 28 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital38 mio100 ax100 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq158 hnf96 smp100 dnf169 smp100 tf104 neg95 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...