./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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-lit/mcmillan2006.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 025e0289c8e9b33528493c96bf0a22ba3200731b ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:50:39,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:50:39,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:50:39,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:50:39,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:50:39,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:50:39,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:50:39,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:50:39,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:50:39,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:50:39,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:50:39,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:50:39,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:50:39,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:50:39,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:50:39,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:50:39,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:50:39,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:50:39,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:50:39,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:50:39,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:50:39,725 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:50:39,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:50:39,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:50:39,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:50:39,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:50:39,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:50:39,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:50:39,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:50:39,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:50:39,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:50:39,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:50:39,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:50:39,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:50:39,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:50:39,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:50:39,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:50:39,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:50:39,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:50:39,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:50:39,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:50:39,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:50:39,763 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:50:39,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:50:39,765 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:50:39,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:50:39,766 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:50:39,766 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:50:39,766 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:50:39,767 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:50:39,767 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:50:39,767 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:50:39,768 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:50:39,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:50:39,768 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:50:39,768 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:50:39,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:50:39,769 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:50:39,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:50:39,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:50:39,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:50:39,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:50:39,770 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:50:39,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:50:39,771 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:50:39,771 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:50:39,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:50:39,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:50:39,772 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:50:39,772 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:50:39,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:50:39,773 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:50:39,773 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:50:39,774 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:50:39,775 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:50:39,775 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 -> 025e0289c8e9b33528493c96bf0a22ba3200731b [2019-11-28 20:50:40,112 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:50:40,124 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:50:40,128 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:50:40,129 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:50:40,130 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:50:40,131 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mcmillan2006.i [2019-11-28 20:50:40,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/142a01275/efe5210e9173464883590174dead5140/FLAGa22737de1 [2019-11-28 20:50:40,669 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:50:40,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mcmillan2006.i [2019-11-28 20:50:40,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/142a01275/efe5210e9173464883590174dead5140/FLAGa22737de1 [2019-11-28 20:50:41,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/142a01275/efe5210e9173464883590174dead5140 [2019-11-28 20:50:41,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:50:41,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:50:41,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:50:41,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:50:41,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:50:41,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44256411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41, skipping insertion in model container [2019-11-28 20:50:41,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,077 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:50:41,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:50:41,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:50:41,320 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:50:41,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:50:41,353 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:50:41,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41 WrapperNode [2019-11-28 20:50:41,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:50:41,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:50:41,356 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:50:41,356 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:50:41,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:50:41,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:50:41,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:50:41,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:50:41,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,478 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... [2019-11-28 20:50:41,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:50:41,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:50:41,493 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:50:41,493 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:50:41,494 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 20:50:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 20:50:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:50:41,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:50:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 20:50:41,827 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:50:41,827 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 20:50:41,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:50:41 BoogieIcfgContainer [2019-11-28 20:50:41,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:50:41,829 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:50:41,829 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:50:41,835 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:50:41,837 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:50:41,837 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:50:41" (1/3) ... [2019-11-28 20:50:41,839 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ff27f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:50:41, skipping insertion in model container [2019-11-28 20:50:41,839 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:50:41,840 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:50:41" (2/3) ... [2019-11-28 20:50:41,840 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ff27f2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:50:41, skipping insertion in model container [2019-11-28 20:50:41,841 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:50:41,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:50:41" (3/3) ... [2019-11-28 20:50:41,843 INFO L371 chiAutomizerObserver]: Analyzing ICFG mcmillan2006.i [2019-11-28 20:50:41,900 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:50:41,901 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:50:41,901 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:50:41,901 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:50:41,901 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:50:41,902 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:50:41,902 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:50:41,902 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:50:41,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-28 20:50:41,936 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-28 20:50:41,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:41,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:41,942 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:50:41,942 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:50:41,942 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:50:41,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-11-28 20:50:41,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-11-28 20:50:41,944 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:41,944 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:41,945 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:50:41,945 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:50:41,951 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet1, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~post3, main_~i~0, main_#t~mem5, main_#t~post4, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 15#L14true assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;main_~i~0 := 0; 11#L16-3true [2019-11-28 20:50:41,951 INFO L796 eck$LassoCheckResult]: Loop: 11#L16-3true assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 16#L16-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 11#L16-3true [2019-11-28 20:50:41,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:41,956 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2019-11-28 20:50:41,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:41,964 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573569951] [2019-11-28 20:50:41,964 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:42,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:42,088 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:42,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:42,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2019-11-28 20:50:42,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:42,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069205530] [2019-11-28 20:50:42,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:42,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:42,113 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:42,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:42,117 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2019-11-28 20:50:42,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:42,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003006386] [2019-11-28 20:50:42,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:42,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:42,180 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:42,400 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:42,401 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:42,401 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:42,402 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:42,402 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:50:42,402 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:42,402 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:42,403 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:42,403 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration1_Lasso [2019-11-28 20:50:42,403 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:42,404 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:42,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,446 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:42,925 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:42,931 INFO L489 LassoAnalysis]: Using template 'affine'. 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 [2019-11-28 20:50:42,943 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 [2019-11-28 20:50:42,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:42,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:42,946 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:42,946 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:42,946 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:42,949 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:42,949 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:42,953 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 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 [2019-11-28 20:50:42,960 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 [2019-11-28 20:50:42,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:42,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:42,963 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:42,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:42,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:42,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:42,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:42,967 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:42,979 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 [2019-11-28 20:50:42,982 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:42,983 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:42,983 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:42,983 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:42,984 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:42,987 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:42,987 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:42,989 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:43,012 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 [2019-11-28 20:50:43,014 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:43,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:43,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:43,015 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:43,023 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:43,024 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:43,030 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) [2019-11-28 20:50:43,044 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:43,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:43,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:43,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:43,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:43,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:43,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:43,051 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:43,055 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:43,073 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 [2019-11-28 20:50:43,075 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:43,075 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:43,076 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:43,076 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:43,076 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:43,078 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:43,078 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:43,080 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:43,096 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 [2019-11-28 20:50:43,099 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:43,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:43,100 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:43,100 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:43,100 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:43,101 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:43,101 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:43,104 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:43,120 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 [2019-11-28 20:50:43,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:43,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:43,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:43,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:43,142 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:43,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:50:43,166 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:50:43,241 INFO L443 ModelExtractionUtils]: Simplification made 17 calls to the SMT solver. [2019-11-28 20:50:43,241 INFO L444 ModelExtractionUtils]: 1 out of 22 variables were initially zero. Simplification set additionally 18 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:43,262 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:43,267 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-11-28 20:50:43,267 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:50:43,268 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 20:50:43,284 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-11-28 20:50:43,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:43,332 INFO L264 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:50:43,333 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:43,350 INFO L264 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:50:43,351 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:43,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:50:43,383 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 [2019-11-28 20:50:43,385 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-11-28 20:50:43,458 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 40 states and 51 transitions. Complement of second has 7 states. [2019-11-28 20:50:43,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 20:50:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:50:43,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 34 transitions. [2019-11-28 20:50:43,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 20:50:43,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:43,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2019-11-28 20:50:43,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:43,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2019-11-28 20:50:43,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:43,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 51 transitions. [2019-11-28 20:50:43,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:50:43,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 11 states and 13 transitions. [2019-11-28 20:50:43,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-11-28 20:50:43,484 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-28 20:50:43,484 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2019-11-28 20:50:43,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:43,485 INFO L688 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-28 20:50:43,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2019-11-28 20:50:43,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-28 20:50:43,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 20:50:43,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-28 20:50:43,511 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-28 20:50:43,511 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-28 20:50:43,511 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:50:43,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2019-11-28 20:50:43,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:50:43,512 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:43,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:43,513 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-11-28 20:50:43,513 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 20:50:43,514 INFO L794 eck$LassoCheckResult]: Stem: 115#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 111#L-1 havoc main_#res;havoc main_#t~nondet1, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~post3, main_~i~0, main_#t~mem5, main_#t~post4, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 112#L14 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;main_~i~0 := 0; 117#L16-3 assume !(main_~i~0 < main_~n~0); 116#L16-4 main_~i~1 := 0; 110#L17-3 [2019-11-28 20:50:43,514 INFO L796 eck$LassoCheckResult]: Loop: 110#L17-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 113#L5 assume !(0 == __VERIFIER_assert_~cond); 114#L5-2 havoc main_#t~mem5; 109#L17-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 110#L17-3 [2019-11-28 20:50:43,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,515 INFO L82 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2019-11-28 20:50:43,515 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:43,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737089105] [2019-11-28 20:50:43,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:43,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,536 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:43,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 1 times [2019-11-28 20:50:43,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:43,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413095056] [2019-11-28 20:50:43,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,559 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:43,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,560 INFO L82 PathProgramCache]: Analyzing trace with hash 1304171029, now seen corresponding path program 1 times [2019-11-28 20:50:43,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:43,561 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563757926] [2019-11-28 20:50:43,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:43,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:50:43,682 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563757926] [2019-11-28 20:50:43,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:50:43,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 20:50:43,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291780371] [2019-11-28 20:50:43,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:50:43,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 20:50:43,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 20:50:43,785 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-11-28 20:50:43,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:50:43,829 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-28 20:50:43,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 20:50:43,831 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2019-11-28 20:50:43,832 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:50:43,833 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2019-11-28 20:50:43,833 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-11-28 20:50:43,833 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-11-28 20:50:43,833 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2019-11-28 20:50:43,833 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:43,835 INFO L688 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-28 20:50:43,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2019-11-28 20:50:43,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-28 20:50:43,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-28 20:50:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2019-11-28 20:50:43,840 INFO L711 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-28 20:50:43,841 INFO L591 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2019-11-28 20:50:43,841 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 20:50:43,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2019-11-28 20:50:43,842 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-11-28 20:50:43,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:50:43,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:50:43,850 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:50:43,851 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 20:50:43,851 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 147#L-1 havoc main_#res;havoc main_#t~nondet1, main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~post3, main_~i~0, main_#t~mem5, main_#t~post4, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 148#L14 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset;main_~i~0 := 0; 153#L16-3 assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 154#L16-2 main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 155#L16-3 assume !(main_~i~0 < main_~n~0); 152#L16-4 main_~i~1 := 0; 146#L17-3 [2019-11-28 20:50:43,851 INFO L796 eck$LassoCheckResult]: Loop: 146#L17-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem5 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem5 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 149#L5 assume !(0 == __VERIFIER_assert_~cond); 150#L5-2 havoc main_#t~mem5; 145#L17-2 main_#t~post4 := main_~i~1;main_~i~1 := 1 + main_#t~post4;havoc main_#t~post4; 146#L17-3 [2019-11-28 20:50:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2019-11-28 20:50:43,853 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:43,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715586951] [2019-11-28 20:50:43,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,908 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:43,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1823306, now seen corresponding path program 2 times [2019-11-28 20:50:43,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:43,912 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054360747] [2019-11-28 20:50:43,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:43,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:43,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:43,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1358706313, now seen corresponding path program 1 times [2019-11-28 20:50:43,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:50:43,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239063734] [2019-11-28 20:50:43,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:50:43,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:44,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:50:44,014 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:50:44,266 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-11-28 20:50:44,322 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:50:44,322 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:50:44,322 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:50:44,322 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:50:44,322 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:50:44,322 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,322 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:50:44,323 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:50:44,323 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration3_Lasso [2019-11-28 20:50:44,323 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:50:44,323 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:50:44,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,341 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,349 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,351 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:50:44,836 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:50:44,836 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,853 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 [2019-11-28 20:50:44,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,855 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:44,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,856 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,856 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:44,857 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:44,857 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:44,859 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 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,880 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 [2019-11-28 20:50:44,882 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,882 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:44,882 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,882 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,883 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:44,883 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:44,883 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:44,885 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,896 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 [2019-11-28 20:50:44,898 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,898 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:44,898 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,898 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,899 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:44,899 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:44,899 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:50:44,901 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:44,917 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 [2019-11-28 20:50:44,919 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,919 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,919 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,919 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:44,924 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:44,924 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,928 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:44,942 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 [2019-11-28 20:50:44,944 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,944 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:44,944 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,944 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,944 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:44,945 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:44,945 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,948 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:44,967 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 [2019-11-28 20:50:44,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:50:44,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:44,972 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:50:44,973 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:44,977 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:44,995 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 [2019-11-28 20:50:44,997 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:44,997 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:44,997 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:44,997 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:45,001 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:45,001 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:45,009 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:45,030 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:45,032 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:45,033 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-28 20:50:45,033 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:45,033 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:45,040 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-11-28 20:50:45,041 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:50:45,048 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 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:45,061 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 [2019-11-28 20:50:45,063 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:45,063 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:45,063 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:45,063 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:45,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:45,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:50:45,081 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 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:45,094 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 [2019-11-28 20:50:45,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:45,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:45,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:45,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:45,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:45,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:50:45,104 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:45,119 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 [2019-11-28 20:50:45,121 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:50:45,122 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:50:45,122 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:50:45,122 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:50:45,128 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:50:45,129 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:50:45,145 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:50:45,218 INFO L443 ModelExtractionUtils]: Simplification made 15 calls to the SMT solver. [2019-11-28 20:50:45,219 INFO L444 ModelExtractionUtils]: 10 out of 25 variables were initially zero. Simplification set additionally 10 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:50:45,225 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:50:45,230 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-11-28 20:50:45,230 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:50:45,231 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_#t~malloc2.base)_2, ULTIMATE.start_main_~i~1) = 1*v_rep(select #length ULTIMATE.start_main_#t~malloc2.base)_2 - 2*ULTIMATE.start_main_~i~1 Supporting invariants [-2*ULTIMATE.start_main_~n~0 + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc2.base)_2 >= 0] [2019-11-28 20:50:45,282 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2019-11-28 20:50:45,285 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-11-28 20:50:45,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:50:45,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:45,348 INFO L264 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:50:45,349 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:45,404 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-11-28 20:50:45,404 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-11-28 20:50:45,411 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 20:50:45,412 INFO L534 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-11-28 20:50:45,412 INFO L239 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-11-28 20:50:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:50:45,460 INFO L264 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-28 20:50:45,461 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:50:45,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:50:45,498 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.3 stem predicates 2 loop predicates [2019-11-28 20:50:45,499 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand 5 states. [2019-11-28 20:50:45,585 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand 5 states. Result 15 states and 17 transitions. Complement of second has 6 states. [2019-11-28 20:50:45,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 3 stem states 1 non-accepting loop states 1 accepting loop states [2019-11-28 20:50:45,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 20:50:45,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-11-28 20:50:45,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2019-11-28 20:50:45,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:45,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 11 letters. Loop has 4 letters. [2019-11-28 20:50:45,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:45,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 8 letters. [2019-11-28 20:50:45,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:50:45,590 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2019-11-28 20:50:45,591 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:50:45,591 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-11-28 20:50:45,591 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:50:45,591 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:50:45,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:50:45,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:50:45,591 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:45,594 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:45,594 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:50:45,594 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 20:50:45,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:50:45,595 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:50:45,595 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:50:45,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:50:45 BoogieIcfgContainer [2019-11-28 20:50:45,612 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:50:45,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:50:45,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:50:45,614 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:50:45,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:50:41" (3/4) ... [2019-11-28 20:50:45,619 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:50:45,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:50:45,627 INFO L168 Benchmark]: Toolchain (without parser) took 4560.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 196.6 MB). Free memory was 960.4 MB in the beginning and 1.1 GB in the end (delta: -92.4 MB). Peak memory consumption was 104.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:45,628 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:50:45,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.27 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:45,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:45,633 INFO L168 Benchmark]: Boogie Preprocessor took 36.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:45,636 INFO L168 Benchmark]: RCFGBuilder took 335.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:45,638 INFO L168 Benchmark]: BuchiAutomizer took 3783.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.1 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:50:45,639 INFO L168 Benchmark]: Witness Printer took 6.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:50:45,646 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 293.27 ms. Allocated memory is still 1.0 GB. Free memory was 960.4 MB in the beginning and 949.6 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 100.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -165.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 335.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3783.07 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.1 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[malloc(n * sizeof(int))] + -2 * i and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 28 SDtfs, 30 SDslu, 30 SDs, 0 SdLazy, 36 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital116 mio100 ax100 hnf99 lsp92 ukn84 mio100 lsp61 div100 bol100 ite100 ukn100 eq164 hnf89 smp90 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...