./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/id_i5_o5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/id_i5_o5-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer --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 2cc8e2531753efe353b2d0bfa802b879fbc4d745 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:38:20,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:38:20,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:38:20,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:38:20,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:38:20,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:38:20,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:38:20,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:38:20,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:38:20,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:38:20,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:38:20,700 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:38:20,700 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:38:20,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:38:20,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:38:20,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:38:20,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:38:20,716 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:38:20,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:38:20,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:38:20,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:38:20,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:38:20,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:38:20,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:38:20,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:38:20,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:38:20,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:38:20,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:38:20,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:38:20,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:38:20,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:38:20,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:38:20,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:38:20,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:38:20,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:38:20,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:38:20,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:38:20,746 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:38:20,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:38:20,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:38:20,748 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:38:20,749 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-29 23:38:20,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:38:20,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:38:20,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:38:20,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:38:20,787 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:38:20,787 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-29 23:38:20,787 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-29 23:38:20,787 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-29 23:38:20,788 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-29 23:38:20,788 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-29 23:38:20,789 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-29 23:38:20,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:38:20,790 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:38:20,790 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 23:38:20,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:38:20,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:38:20,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:38:20,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-29 23:38:20,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-29 23:38:20,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-29 23:38:20,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:38:20,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:38:20,792 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-29 23:38:20,793 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:38:20,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-29 23:38:20,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:38:20,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:38:20,794 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-29 23:38:20,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:38:20,795 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:38:20,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:38:20,796 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-29 23:38:20,797 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-29 23:38:20,798 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cc8e2531753efe353b2d0bfa802b879fbc4d745 [2020-11-29 23:38:21,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:38:21,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:38:21,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:38:21,148 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:38:21,149 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:38:21,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/id_i5_o5-1.c [2020-11-29 23:38:21,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/data/856d5d899/1979fa8f9ab642ac98dad5548a78153d/FLAG5e396aefe [2020-11-29 23:38:21,710 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:38:21,711 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/sv-benchmarks/c/recursive-simple/id_i5_o5-1.c [2020-11-29 23:38:21,720 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/data/856d5d899/1979fa8f9ab642ac98dad5548a78153d/FLAG5e396aefe [2020-11-29 23:38:22,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/data/856d5d899/1979fa8f9ab642ac98dad5548a78153d [2020-11-29 23:38:22,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:38:22,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:38:22,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:38:22,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:38:22,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:38:22,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53526950 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22, skipping insertion in model container [2020-11-29 23:38:22,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:38:22,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:38:22,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:38:22,422 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:38:22,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:38:22,447 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:38:22,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22 WrapperNode [2020-11-29 23:38:22,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:38:22,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:38:22,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:38:22,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:38:22,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:38:22,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:38:22,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:38:22,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:38:22,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... [2020-11-29 23:38:22,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:38:22,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:38:22,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:38:22,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:38:22,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:38:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:38:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:38:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-11-29 23:38:22,594 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-11-29 23:38:22,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:38:22,793 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:38:22,804 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-29 23:38:22,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:38:22 BoogieIcfgContainer [2020-11-29 23:38:22,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:38:22,816 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-29 23:38:22,816 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-29 23:38:22,820 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-29 23:38:22,821 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:38:22,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 11:38:22" (1/3) ... [2020-11-29 23:38:22,833 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b4640db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:38:22, skipping insertion in model container [2020-11-29 23:38:22,833 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:38:22,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:38:22" (2/3) ... [2020-11-29 23:38:22,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5b4640db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 11:38:22, skipping insertion in model container [2020-11-29 23:38:22,834 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-29 23:38:22,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:38:22" (3/3) ... [2020-11-29 23:38:22,835 INFO L373 chiAutomizerObserver]: Analyzing ICFG id_i5_o5-1.c [2020-11-29 23:38:22,894 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-29 23:38:22,894 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-29 23:38:22,894 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-29 23:38:22,895 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:38:22,895 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:38:22,895 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-29 23:38:22,895 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:38:22,895 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-29 23:38:22,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 23:38:22,930 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:38:22,930 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:22,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:22,938 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:38:22,938 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:38:22,938 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-29 23:38:22,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-11-29 23:38:22,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-11-29 23:38:22,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-29 23:38:22,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-29 23:38:22,942 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-29 23:38:22,942 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-29 23:38:22,949 INFO L794 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12); 5#L-1true havoc main_#res;havoc main_#t~ret8, main_~input~0, main_~result~0;main_~input~0 := 5; 15#L13true call main_#t~ret8 := id(main_~input~0);< 13#idENTRYtrue [2020-11-29 23:38:22,950 INFO L796 eck$LassoCheckResult]: Loop: 13#idENTRYtrue ~x := #in~x; 10#L7true assume !(0 == ~x); 6#L8true call #t~ret7 := id(~x - 1);< 13#idENTRYtrue [2020-11-29 23:38:22,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash 29878, now seen corresponding path program 1 times [2020-11-29 23:38:22,966 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:22,966 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258703385] [2020-11-29 23:38:22,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:23,081 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:23,120 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:23,162 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:23,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:23,171 INFO L82 PathProgramCache]: Analyzing trace with hash 46806, now seen corresponding path program 1 times [2020-11-29 23:38:23,171 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:23,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134392832] [2020-11-29 23:38:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:23,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:23,197 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:23,199 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:23,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:23,203 INFO L82 PathProgramCache]: Analyzing trace with hash 890112513, now seen corresponding path program 1 times [2020-11-29 23:38:23,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:38:23,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600763519] [2020-11-29 23:38:23,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:38:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:23,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:38:23,277 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:38:23,282 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:38:23,398 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:38:23,398 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:38:23,399 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:38:23,399 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:38:23,399 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-11-29 23:38:23,399 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:23,399 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:38:23,399 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:38:23,399 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i5_o5-1.c_Iteration1_Loop [2020-11-29 23:38:23,400 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:38:23,400 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:38:23,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:23,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:23,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:23,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:23,530 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:38:23,530 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:23,541 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:38:23,541 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:23,553 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:38:23,553 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret7=0} Honda state: {id_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:23,577 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:38:23,577 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-11-29 23:38:23,580 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:38:23,580 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:23,603 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:38:23,604 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:23,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-11-29 23:38:23,634 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:23,710 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:38:23,711 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-7} Honda state: {id_#in~x=-7} Generalized eigenvectors: [{id_#in~x=0}, {id_#in~x=0}, {id_#in~x=-1}] Lambdas: [2, 0, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:23,749 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-11-29 23:38:23,749 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:23,752 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-11-29 23:38:23,753 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-11-29 23:38:23,995 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-11-29 23:38:24,236 INFO L210 LassoAnalysis]: Preferences: [2020-11-29 23:38:24,237 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-11-29 23:38:24,237 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-11-29 23:38:24,237 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-11-29 23:38:24,237 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-11-29 23:38:24,237 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:24,237 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-11-29 23:38:24,237 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-11-29 23:38:24,237 INFO L133 ssoRankerPreferences]: Filename of dumped script: id_i5_o5-1.c_Iteration1_Lasso [2020-11-29 23:38:24,237 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-11-29 23:38:24,238 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-11-29 23:38:24,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,269 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,282 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,294 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,304 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,431 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,434 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,442 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-11-29 23:38:24,778 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-11-29 23:38:24,786 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:24,794 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:24,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:24,797 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:24,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:24,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:24,802 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-11-29 23:38:24,803 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-11-29 23:38:24,809 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:24,857 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:24,859 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:24,859 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-11-29 23:38:24,859 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:24,860 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-11-29 23:38:24,860 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:24,861 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-11-29 23:38:24,861 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:24,863 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-29 23:38:24,888 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-11-29 23:38:24,890 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-11-29 23:38:24,890 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-11-29 23:38:24,890 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-11-29 23:38:24,890 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-11-29 23:38:24,904 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2020-11-29 23:38:24,904 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2020-11-29 23:38:24,924 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-11-29 23:38:25,015 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2020-11-29 23:38:25,015 INFO L444 ModelExtractionUtils]: 1 out of 11 variables were initially zero. Simplification set additionally 7 variables to zero. No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_227013b8-c24a-4072-8b8c-d2a71106b7ad/bin/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-11-29 23:38:25,021 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 [2020-11-29 23:38:25,029 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2020-11-29 23:38:25,030 INFO L510 LassoAnalysis]: Proved termination. [2020-11-29 23:38:25,030 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2020-11-29 23:38:25,144 INFO L297 tatePredicateManager]: 7 out of 8 supporting invariants were superfluous and have been removed [2020-11-29 23:38:25,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:38:25,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:25,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 23:38:25,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:38:25,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-29 23:38:25,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:38:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:38:25,323 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-11-29 23:38:25,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 5 states. [2020-11-29 23:38:25,491 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 5 states. Result 31 states and 36 transitions. Complement of second has 13 states. [2020-11-29 23:38:25,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2020-11-29 23:38:25,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-11-29 23:38:25,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 8 transitions. [2020-11-29 23:38:25,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2020-11-29 23:38:25,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:25,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2020-11-29 23:38:25,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:25,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2020-11-29 23:38:25,505 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-11-29 23:38:25,506 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 36 transitions. [2020-11-29 23:38:25,528 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:38:25,530 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2020-11-29 23:38:25,532 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-11-29 23:38:25,548 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-11-29 23:38:25,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-11-29 23:38:25,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-29 23:38:25,549 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:25,549 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:25,549 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:38:25,549 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-29 23:38:25,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:38:25,550 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-11-29 23:38:25,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-11-29 23:38:25,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 11:38:25 BoogieIcfgContainer [2020-11-29 23:38:25,556 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-29 23:38:25,557 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:38:25,557 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:38:25,557 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:38:25,558 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:38:22" (3/4) ... [2020-11-29 23:38:25,569 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:38:25,570 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:38:25,572 INFO L168 Benchmark]: Toolchain (without parser) took 3453.69 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 67.2 MB in the beginning and 92.5 MB in the end (delta: -25.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:25,573 INFO L168 Benchmark]: CDTParser took 0.93 ms. Allocated memory is still 96.5 MB. Free memory was 55.5 MB in the beginning and 55.4 MB in the end (delta: 68.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:25,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 333.32 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 75.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:25,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.81 ms. Allocated memory is still 96.5 MB. Free memory was 75.2 MB in the beginning and 73.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:25,575 INFO L168 Benchmark]: Boogie Preprocessor took 17.58 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:25,576 INFO L168 Benchmark]: RCFGBuilder took 303.02 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 62.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:25,578 INFO L168 Benchmark]: BuchiAutomizer took 2740.52 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 93.6 MB in the end (delta: -31.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:38:25,579 INFO L168 Benchmark]: Witness Printer took 12.97 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 92.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:38:25,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93 ms. Allocated memory is still 96.5 MB. Free memory was 55.5 MB in the beginning and 55.4 MB in the end (delta: 68.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 333.32 ms. Allocated memory is still 96.5 MB. Free memory was 66.8 MB in the beginning and 75.2 MB in the end (delta: -8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.81 ms. Allocated memory is still 96.5 MB. Free memory was 75.2 MB in the beginning and 73.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.58 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 303.02 ms. Allocated memory is still 96.5 MB. Free memory was 72.8 MB in the beginning and 62.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2740.52 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 93.6 MB in the end (delta: -31.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 12.97 ms. Allocated memory is still 117.4 MB. Free memory was 93.6 MB in the beginning and 92.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital66 mio100 ax100 hnf100 lsp89 ukn73 mio100 lsp67 div100 bol100 ite100 ukn100 eq199 hnf96 smp100 dnf145 smp100 tf102 neg94 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 144ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...