./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC --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 42712a480385f40caa20979fd35763a8ad414af5 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:31:10,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:31:10,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:31:10,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:31:10,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:31:10,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:31:10,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:31:10,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:31:10,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:31:10,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:31:10,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:31:10,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:31:10,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:31:10,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:31:10,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:31:10,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:31:10,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:31:10,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:31:10,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:31:10,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:31:10,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:31:10,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:31:10,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:31:10,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:31:10,730 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:31:10,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:31:10,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:31:10,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:31:10,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:31:10,735 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:31:10,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:31:10,736 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:31:10,737 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:31:10,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:31:10,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:31:10,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:31:10,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:31:10,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:31:10,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:31:10,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:31:10,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:31:10,746 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-11 00:31:10,774 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:31:10,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:31:10,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:31:10,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:31:10,777 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:31:10,778 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-11 00:31:10,780 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-11 00:31:10,780 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-11 00:31:10,781 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-11 00:31:10,781 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-11 00:31:10,783 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-11 00:31:10,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:31:10,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:31:10,785 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 00:31:10,785 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:31:10,785 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:31:10,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:31:10,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-11 00:31:10,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-11 00:31:10,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-11 00:31:10,787 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:31:10,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:31:10,787 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-11 00:31:10,788 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:31:10,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-11 00:31:10,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:31:10,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:31:10,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:31:10,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:31:10,791 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:31:10,792 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-11 00:31:10,793 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_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42712a480385f40caa20979fd35763a8ad414af5 [2021-10-11 00:31:11,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:31:11,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:31:11,164 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:31:11,166 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:31:11,166 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:31:11,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2021-10-11 00:31:11,258 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/data/129dcb432/c0ced949ce5e4775a81282321bc27805/FLAG631f8c1f2 [2021-10-11 00:31:11,808 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:31:11,809 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/sv-benchmarks/c/recursive-simple/sum_20x0-2.c [2021-10-11 00:31:11,820 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/data/129dcb432/c0ced949ce5e4775a81282321bc27805/FLAG631f8c1f2 [2021-10-11 00:31:12,168 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/data/129dcb432/c0ced949ce5e4775a81282321bc27805 [2021-10-11 00:31:12,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:31:12,172 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:31:12,173 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:12,174 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:31:12,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:31:12,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5238591d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12, skipping insertion in model container [2021-10-11 00:31:12,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:31:12,200 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:31:12,388 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2021-10-11 00:31:12,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:12,400 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:31:12,415 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/sv-benchmarks/c/recursive-simple/sum_20x0-2.c[481,494] [2021-10-11 00:31:12,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:31:12,429 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:31:12,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12 WrapperNode [2021-10-11 00:31:12,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:31:12,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:12,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:31:12,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:31:12,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:31:12,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:31:12,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:31:12,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:31:12,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... [2021-10-11 00:31:12,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:31:12,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:31:12,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:31:12,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:31:12,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:31:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:31:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:31:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-11 00:31:12,563 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-11 00:31:12,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:31:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:31:12,749 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:31:12,749 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 00:31:12,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:12 BoogieIcfgContainer [2021-10-11 00:31:12,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:31:12,752 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-11 00:31:12,752 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-11 00:31:12,755 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-11 00:31:12,756 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:12,756 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 11.10 12:31:12" (1/3) ... [2021-10-11 00:31:12,758 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ac530f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:12, skipping insertion in model container [2021-10-11 00:31:12,758 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:12,758 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:31:12" (2/3) ... [2021-10-11 00:31:12,759 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ac530f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 11.10 12:31:12, skipping insertion in model container [2021-10-11 00:31:12,759 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-11 00:31:12,759 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:12" (3/3) ... [2021-10-11 00:31:12,760 INFO L389 chiAutomizerObserver]: Analyzing ICFG sum_20x0-2.c [2021-10-11 00:31:12,807 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-11 00:31:12,808 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-11 00:31:12,808 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-11 00:31:12,808 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:31:12,808 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:31:12,808 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-11 00:31:12,808 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:31:12,808 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-11 00:31:12,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2021-10-11 00:31:12,865 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-11 00:31:12,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:12,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:12,881 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:31:12,886 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:31:12,886 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-11 00:31:12,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2021-10-11 00:31:12,888 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-10-11 00:31:12,889 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-11 00:31:12,889 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-11 00:31:12,889 INFO L853 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-10-11 00:31:12,889 INFO L854 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-10-11 00:31:12,896 INFO L794 eck$LassoCheckResult]: Stem: 11#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); 9#L-1true havoc main_#res;havoc main_#t~ret8, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 20;main_~b~0 := 0; 5#L16true call main_#t~ret8 := sum(main_~a~0, main_~b~0);< 10#sumENTRYtrue [2021-10-11 00:31:12,897 INFO L796 eck$LassoCheckResult]: Loop: 10#sumENTRYtrue ~n := #in~n;~m := #in~m; 4#L6true assume !(~n <= 0); 12#L9true call #t~ret7 := sum(~n - 1, 1 + ~m);< 10#sumENTRYtrue [2021-10-11 00:31:12,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:12,902 INFO L82 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2021-10-11 00:31:12,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:12,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084503210] [2021-10-11 00:31:12,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:13,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:13,055 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:13,074 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:13,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:13,077 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2021-10-11 00:31:13,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:13,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716216134] [2021-10-11 00:31:13,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:13,085 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:13,095 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:13,097 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:13,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:13,102 INFO L82 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2021-10-11 00:31:13,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:31:13,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794482978] [2021-10-11 00:31:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:31:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:13,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:31:13,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:31:13,187 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:31:13,402 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:13,406 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:13,406 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:13,406 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:13,407 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-10-11 00:31:13,407 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:13,407 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:13,407 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:13,407 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-2.c_Iteration1_Loop [2021-10-11 00:31:13,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:13,408 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:13,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,433 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,443 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,462 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,541 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:13,542 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:13,556 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:13,556 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 [2021-10-11 00:31:13,580 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:13,580 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret7=0} Honda state: {sum_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:13,621 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:13,621 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:13,647 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:13,647 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:13,691 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:13,692 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:13,703 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-10-11 00:31:13,703 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:13,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-10-11 00:31:13,748 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 No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:13,812 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-10-11 00:31:13,812 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 [2021-10-11 00:31:13,863 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-10-11 00:31:13,866 INFO L210 LassoAnalysis]: Preferences: [2021-10-11 00:31:13,866 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-10-11 00:31:13,866 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-10-11 00:31:13,867 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-10-11 00:31:13,867 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-10-11 00:31:13,867 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:13,867 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-10-11 00:31:13,867 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-10-11 00:31:13,867 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_20x0-2.c_Iteration1_Loop [2021-10-11 00:31:13,867 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-10-11 00:31:13,868 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2021-10-11 00:31:13,869 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,899 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-10-11 00:31:13,983 INFO L292 LassoAnalysis]: Preprocessing complete. [2021-10-11 00:31:13,988 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:13,997 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 [2021-10-11 00:31:14,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:14,001 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:14,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:14,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:14,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:14,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:14,007 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:14,023 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:14,065 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 [2021-10-11 00:31:14,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:14,067 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:14,067 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:14,067 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:14,067 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:14,068 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:14,068 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 [2021-10-11 00:31:14,094 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:14,133 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 [2021-10-11 00:31:14,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:14,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:14,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:14,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:14,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:14,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:14,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-10-11 00:31:14,154 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-11 00:31:14,193 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 [2021-10-11 00:31:14,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-10-11 00:31:14,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-10-11 00:31:14,195 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-10-11 00:31:14,195 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-10-11 00:31:14,195 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-10-11 00:31:14,198 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-10-11 00:31:14,198 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-11 00:31:14,211 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-10-11 00:31:14,217 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-10-11 00:31:14,217 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57c6adc7-3b25-400a-9e64-641360557113/bin/uautomizer-Z5i5R5N3CC/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 [2021-10-11 00:31:14,223 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-10-11 00:31:14,223 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-10-11 00:31:14,223 INFO L510 LassoAnalysis]: Proved termination. [2021-10-11 00:31:14,224 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2021-10-11 00:31:14,258 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-10-11 00:31:14,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:31:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:14,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 00:31:14,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:14,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:31:14,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:31:14,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:31:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:31:14,492 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-10-11 00:31:14,493 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2021-10-11 00:31:14,621 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 30 states and 35 transitions. Complement of second has 12 states. [2021-10-11 00:31:14,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-10-11 00:31:14,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-11 00:31:14,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2021-10-11 00:31:14,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2021-10-11 00:31:14,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:14,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2021-10-11 00:31:14,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:14,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2021-10-11 00:31:14,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-10-11 00:31:14,628 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2021-10-11 00:31:14,635 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:14,638 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2021-10-11 00:31:14,639 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-10-11 00:31:14,639 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-10-11 00:31:14,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-10-11 00:31:14,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-11 00:31:14,641 INFO L692 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:14,641 INFO L715 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:14,641 INFO L595 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:31:14,641 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-11 00:31:14,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:31:14,642 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-10-11 00:31:14,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-10-11 00:31:14,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 11.10 12:31:14 BoogieIcfgContainer [2021-10-11 00:31:14,647 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-11 00:31:14,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:31:14,650 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:31:14,650 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:31:14,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:31:12" (3/4) ... [2021-10-11 00:31:14,654 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:31:14,654 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:31:14,659 INFO L168 Benchmark]: Toolchain (without parser) took 2483.49 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 64.8 MB in the beginning and 76.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:14,660 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 54.4 MB in the beginning and 54.3 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:14,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.32 ms. Allocated memory is still 96.5 MB. Free memory was 64.5 MB in the beginning and 73.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:14,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.28 ms. Allocated memory is still 96.5 MB. Free memory was 73.8 MB in the beginning and 72.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:14,666 INFO L168 Benchmark]: Boogie Preprocessor took 17.96 ms. Allocated memory is still 96.5 MB. Free memory was 72.5 MB in the beginning and 71.7 MB in the end (delta: 810.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:14,667 INFO L168 Benchmark]: RCFGBuilder took 267.61 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 60.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:14,673 INFO L168 Benchmark]: BuchiAutomizer took 1895.63 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.4 MB in the beginning and 76.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:31:14,673 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 117.4 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:31:14,679 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 96.5 MB. Free memory was 54.4 MB in the beginning and 54.3 MB in the end (delta: 42.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.32 ms. Allocated memory is still 96.5 MB. Free memory was 64.5 MB in the beginning and 73.8 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.28 ms. Allocated memory is still 96.5 MB. Free memory was 73.8 MB in the beginning and 72.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.96 ms. Allocated memory is still 96.5 MB. Free memory was 72.5 MB in the beginning and 71.7 MB in the end (delta: 810.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 267.61 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 60.6 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1895.63 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 60.4 MB in the beginning and 76.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.73 ms. Allocated memory is still 117.4 MB. Free memory is still 76.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. 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, 2 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 34ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...