./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum04-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 54858612 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/loops/sum04-2.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 e4783c6ee2901b631023e80ae57ac531c222bf81 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:47:51,710 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:47:51,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:47:51,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:47:51,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:47:51,751 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:47:51,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:47:51,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:47:51,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:47:51,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:47:51,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:47:51,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:47:51,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:47:51,764 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:47:51,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:47:51,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:47:51,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:47:51,769 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:47:51,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:47:51,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:47:51,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:47:51,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:47:51,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:47:51,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:47:51,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:47:51,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:47:51,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:47:51,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:47:51,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:47:51,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:47:51,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:47:51,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:47:51,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:47:51,798 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:47:51,799 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:47:51,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:47:51,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:47:51,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:47:51,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:47:51,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:47:51,807 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:47:51,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:47:51,873 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:47:51,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:47:51,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:47:51,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:47:51,877 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:47:51,878 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:47:51,878 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:47:51,878 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:47:51,878 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:47:51,879 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:47:51,880 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:47:51,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:47:51,880 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:47:51,881 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:47:51,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:47:51,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:47:51,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:47:51,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:47:51,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:47:51,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:47:51,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:47:51,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:47:51,883 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:47:51,883 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:47:51,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:47:51,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:47:51,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:47:51,884 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:47:51,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:47:51,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:47:51,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:47:51,885 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:47:51,887 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:47:51,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4783c6ee2901b631023e80ae57ac531c222bf81 [2020-10-26 04:47:52,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:47:52,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:47:52,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:47:52,385 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:47:52,391 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:47:52,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum04-2.i [2020-10-26 04:47:52,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65fb76096/8c7de06c0dcf461f9d2bcafa9ea5b11a/FLAG1d16b349a [2020-10-26 04:47:53,058 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:47:53,059 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-2.i [2020-10-26 04:47:53,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65fb76096/8c7de06c0dcf461f9d2bcafa9ea5b11a/FLAG1d16b349a [2020-10-26 04:47:53,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65fb76096/8c7de06c0dcf461f9d2bcafa9ea5b11a [2020-10-26 04:47:53,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:47:53,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:47:53,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:47:53,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:47:53,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:47:53,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8a520a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53, skipping insertion in model container [2020-10-26 04:47:53,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:47:53,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:47:53,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:47:53,701 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:47:53,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:47:53,736 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:47:53,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53 WrapperNode [2020-10-26 04:47:53,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:47:53,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:47:53,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:47:53,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:47:53,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,778 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:47:53,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:47:53,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:47:53,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:47:53,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (1/1) ... [2020-10-26 04:47:53,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:47:53,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:47:53,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:47:53,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:47:53,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (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 [2020-10-26 04:47:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:47:53,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:47:53,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:47:53,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:47:54,299 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:47:54,301 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-26 04:47:54,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:47:54 BoogieIcfgContainer [2020-10-26 04:47:54,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:47:54,305 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:47:54,305 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:47:54,309 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:47:54,310 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:47:54,310 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:47:53" (1/3) ... [2020-10-26 04:47:54,311 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a8b3e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:47:54, skipping insertion in model container [2020-10-26 04:47:54,311 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:47:54,311 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:47:53" (2/3) ... [2020-10-26 04:47:54,312 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a8b3e0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:47:54, skipping insertion in model container [2020-10-26 04:47:54,312 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:47:54,312 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:47:54" (3/3) ... [2020-10-26 04:47:54,314 INFO L373 chiAutomizerObserver]: Analyzing ICFG sum04-2.i [2020-10-26 04:47:54,393 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:47:54,393 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:47:54,393 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:47:54,393 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:47:54,394 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:47:54,394 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:47:54,394 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:47:54,394 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:47:54,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-26 04:47:54,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:47:54,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:47:54,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:47:54,441 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:47:54,441 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:47:54,442 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:47:54,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-10-26 04:47:54,443 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-10-26 04:47:54,444 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:47:54,444 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:47:54,444 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:47:54,444 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-26 04:47:54,454 INFO L794 eck$LassoCheckResult]: Stem: 7#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(10); 3#L-1true havoc main_#res;havoc main_#t~post3, main_~i~0, main_~sn~0;havoc main_~i~0;main_~sn~0 := 0;main_~i~0 := 1; 6#L24-3true [2020-10-26 04:47:54,454 INFO L796 eck$LassoCheckResult]: Loop: 6#L24-3true assume !!(main_~i~0 <= 8);main_~sn~0 := 2 + main_~sn~0; 9#L24-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 6#L24-3true [2020-10-26 04:47:54,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:54,462 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-26 04:47:54,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:54,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020664960] [2020-10-26 04:47:54,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,603 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,619 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,643 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:54,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:54,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2020-10-26 04:47:54,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:54,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417863771] [2020-10-26 04:47:54,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:54,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,667 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:54,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:54,675 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2020-10-26 04:47:54,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:47:54,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786290775] [2020-10-26 04:47:54,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:47:54,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,694 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:47:54,709 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:47:54,714 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:47:54,789 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:47:54,790 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:47:54,790 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:47:54,790 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:47:54,791 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-10-26 04:47:54,791 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,791 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:47:54,791 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:47:54,791 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-2.i_Iteration1_Loop [2020-10-26 04:47:54,791 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:47:54,792 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:47:54,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:47:54,842 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:47:54,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:47:54,962 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:47:54,963 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:54,975 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:47:54,975 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:47:55,037 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:47:55,037 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,067 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-10-26 04:47:55,067 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0=0} Honda state: {ULTIMATE.start_main_~sn~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0=1}, {ULTIMATE.start_main_~sn~0=3}, {ULTIMATE.start_main_~sn~0=-2}] Lambdas: [1, 1, 1] Nus: [0, 0] 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) [2020-10-26 04:47:55,120 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-10-26 04:47:55,121 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:47:55,175 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-10-26 04:47:55,176 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,221 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-10-26 04:47:55,224 INFO L210 LassoAnalysis]: Preferences: [2020-10-26 04:47:55,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-26 04:47:55,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-26 04:47:55,225 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-26 04:47:55,225 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-26 04:47:55,225 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,225 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-26 04:47:55,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-26 04:47:55,225 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-2.i_Iteration1_Loop [2020-10-26 04:47:55,226 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-26 04:47:55,226 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-26 04:47:55,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:47:55,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:47:55,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-26 04:47:55,350 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-26 04:47:55,356 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:47:55,365 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 [2020-10-26 04:47:55,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:47:55,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:47:55,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:47:55,370 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:47:55,370 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:47:55,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:47:55,375 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 [2020-10-26 04:47:55,380 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:47:55,421 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 [2020-10-26 04:47:55,424 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-26 04:47:55,424 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-26 04:47:55,424 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-26 04:47:55,425 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-26 04:47:55,425 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-26 04:47:55,427 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-26 04:47:55,428 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,432 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-26 04:47:55,442 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-10-26 04:47:55,442 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-26 04:47:55,451 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-10-26 04:47:55,451 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-10-26 04:47:55,452 INFO L510 LassoAnalysis]: Proved termination. [2020-10-26 04:47:55,452 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 17 Supporting invariants [] Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:47:55,490 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-10-26 04:47:55,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:47:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:55,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-26 04:47:55,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:47:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:47:55,570 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-26 04:47:55,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-26 04:47:55,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:47:55,611 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-10-26 04:47:55,613 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 3 states. [2020-10-26 04:47:55,726 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 3 states. Result 28 states and 36 transitions. Complement of second has 7 states. [2020-10-26 04:47:55,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-26 04:47:55,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-26 04:47:55,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2020-10-26 04:47:55,735 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2020-10-26 04:47:55,735 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:55,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2020-10-26 04:47:55,736 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:55,736 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2020-10-26 04:47:55,737 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-26 04:47:55,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2020-10-26 04:47:55,749 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:47:55,752 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 0 states and 0 transitions. [2020-10-26 04:47:55,754 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-26 04:47:55,755 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-26 04:47:55,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-26 04:47:55,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:47:55,756 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,757 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,758 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-26 04:47:55,758 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:47:55,759 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-26 04:47:55,759 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-26 04:47:55,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-26 04:47:55,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:47:55 BoogieIcfgContainer [2020-10-26 04:47:55,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:47:55,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:47:55,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:47:55,772 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:47:55,773 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:47:54" (3/4) ... [2020-10-26 04:47:55,778 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-26 04:47:55,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:47:55,790 INFO L168 Benchmark]: Toolchain (without parser) took 2357.31 ms. Allocated memory was 39.8 MB in the beginning and 58.7 MB in the end (delta: 18.9 MB). Free memory was 19.4 MB in the beginning and 38.3 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,791 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 39.8 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,794 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.07 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 18.8 MB in the beginning and 26.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.66 ms. Allocated memory is still 48.2 MB. Free memory was 26.7 MB in the beginning and 25.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,799 INFO L168 Benchmark]: Boogie Preprocessor took 23.27 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 24.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,800 INFO L168 Benchmark]: RCFGBuilder took 500.39 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 26.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:47:55,803 INFO L168 Benchmark]: BuchiAutomizer took 1463.24 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 38.6 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,808 INFO L168 Benchmark]: Witness Printer took 7.31 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 38.3 MB in the end (delta: 315.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:47:55,821 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 39.8 MB. Free memory is still 26.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.07 ms. Allocated memory was 39.8 MB in the beginning and 48.2 MB in the end (delta: 8.4 MB). Free memory was 18.8 MB in the beginning and 26.9 MB in the end (delta: -8.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.66 ms. Allocated memory is still 48.2 MB. Free memory was 26.7 MB in the beginning and 25.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.27 ms. Allocated memory is still 48.2 MB. Free memory was 25.5 MB in the beginning and 24.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 500.39 ms. Allocated memory is still 48.2 MB. Free memory was 24.4 MB in the beginning and 26.3 MB in the end (delta: -1.9 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1463.24 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.1 MB in the beginning and 38.6 MB in the end (delta: -12.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.31 ms. Allocated memory is still 58.7 MB. Free memory was 38.6 MB in the beginning and 38.3 MB in the end (delta: 315.9 kB). 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 affine ranking function -2 * i + 17 and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 8 SDslu, 12 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 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...