./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/sum_15x0-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive-simple/sum_15x0-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 02:41:27,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 02:41:27,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 02:41:27,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 02:41:27,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 02:41:27,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 02:41:27,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 02:41:27,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 02:41:27,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 02:41:27,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 02:41:27,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 02:41:27,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 02:41:27,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 02:41:27,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 02:41:27,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 02:41:27,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 02:41:27,169 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 02:41:27,170 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 02:41:27,171 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 02:41:27,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 02:41:27,176 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 02:41:27,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 02:41:27,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 02:41:27,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 02:41:27,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 02:41:27,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 02:41:27,185 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 02:41:27,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 02:41:27,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 02:41:27,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 02:41:27,187 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 02:41:27,187 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 02:41:27,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 02:41:27,189 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 02:41:27,190 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 02:41:27,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 02:41:27,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 02:41:27,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 02:41:27,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 02:41:27,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 02:41:27,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 02:41:27,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 02:41:27,201 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 02:41:27,226 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 02:41:27,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 02:41:27,227 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 02:41:27,227 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 02:41:27,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 02:41:27,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 02:41:27,228 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 02:41:27,229 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 02:41:27,229 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 02:41:27,229 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 02:41:27,230 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 02:41:27,230 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 02:41:27,230 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 02:41:27,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 02:41:27,230 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 02:41:27,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 02:41:27,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 02:41:27,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 02:41:27,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 02:41:27,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 02:41:27,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 02:41:27,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 02:41:27,232 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 02:41:27,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 02:41:27,232 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 02:41:27,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 02:41:27,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 02:41:27,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 02:41:27,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 02:41:27,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 02:41:27,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 02:41:27,234 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 02:41:27,234 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 610248c6c4c4e7168ba971ed5fa38cec025658aa482465da336c99be91c3aa5c [2022-07-22 02:41:27,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 02:41:27,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 02:41:27,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 02:41:27,570 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 02:41:27,571 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 02:41:27,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2022-07-22 02:41:27,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa1e71f3/8d573b77dc9f437aa4e8aef387c3e942/FLAG5b5bf8b2b [2022-07-22 02:41:27,962 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 02:41:27,963 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_15x0-2.c [2022-07-22 02:41:27,967 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa1e71f3/8d573b77dc9f437aa4e8aef387c3e942/FLAG5b5bf8b2b [2022-07-22 02:41:28,407 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/caa1e71f3/8d573b77dc9f437aa4e8aef387c3e942 [2022-07-22 02:41:28,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 02:41:28,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 02:41:28,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 02:41:28,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 02:41:28,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 02:41:28,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb4b700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28, skipping insertion in model container [2022-07-22 02:41:28,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 02:41:28,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 02:41:28,520 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2022-07-22 02:41:28,534 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:41:28,545 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 02:41:28,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_15x0-2.c[481,494] [2022-07-22 02:41:28,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 02:41:28,568 INFO L208 MainTranslator]: Completed translation [2022-07-22 02:41:28,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28 WrapperNode [2022-07-22 02:41:28,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 02:41:28,569 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 02:41:28,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 02:41:28,570 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 02:41:28,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,624 INFO L137 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-07-22 02:41:28,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 02:41:28,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 02:41:28,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 02:41:28,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 02:41:28,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 02:41:28,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 02:41:28,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 02:41:28,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 02:41:28,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (1/1) ... [2022-07-22 02:41:28,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:28,658 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:28,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:28,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-22 02:41:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 02:41:28,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 02:41:28,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 02:41:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2022-07-22 02:41:28,724 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2022-07-22 02:41:28,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 02:41:28,778 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 02:41:28,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 02:41:28,876 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 02:41:28,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 02:41:28,883 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 02:41:28,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:41:28 BoogieIcfgContainer [2022-07-22 02:41:28,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 02:41:28,886 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 02:41:28,886 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 02:41:28,888 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 02:41:28,889 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:41:28,889 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 02:41:28" (1/3) ... [2022-07-22 02:41:28,890 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15a62c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:41:28, skipping insertion in model container [2022-07-22 02:41:28,890 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:41:28,890 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 02:41:28" (2/3) ... [2022-07-22 02:41:28,891 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@15a62c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 02:41:28, skipping insertion in model container [2022-07-22 02:41:28,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 02:41:28,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:41:28" (3/3) ... [2022-07-22 02:41:28,893 INFO L354 chiAutomizerObserver]: Analyzing ICFG sum_15x0-2.c [2022-07-22 02:41:28,941 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 02:41:28,941 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 02:41:28,941 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 02:41:28,941 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 02:41:28,941 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 02:41:28,941 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 02:41:28,942 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 02:41:28,942 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 02:41:28,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 02:41:28,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 02:41:28,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:41:28,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:41:28,974 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 02:41:28,974 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:41:28,975 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 02:41:28,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-22 02:41:28,977 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 02:41:28,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 02:41:28,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 02:41:28,979 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 02:41:28,979 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 02:41:28,983 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~a~0#1, main_~b~0#1, main_~result~0#1;main_~a~0#1 := 15;main_~b~0#1 := 0; 2#L16true call main_#t~ret5#1 := sum(main_~a~0#1, main_~b~0#1);< 9#sumENTRYtrue [2022-07-22 02:41:28,984 INFO L754 eck$LassoCheckResult]: Loop: 9#sumENTRYtrue ~n := #in~n;~m := #in~m; 14#L6true assume !(~n <= 0); 13#L9true call #t~ret4 := sum(~n - 1, 1 + ~m);< 9#sumENTRYtrue [2022-07-22 02:41:28,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:41:28,996 INFO L85 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2022-07-22 02:41:29,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:41:29,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525889136] [2022-07-22 02:41:29,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:41:29,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:41:29,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:41:29,068 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:41:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:41:29,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:41:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:41:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2022-07-22 02:41:29,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:41:29,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008047142] [2022-07-22 02:41:29,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:41:29,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:41:29,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:41:29,121 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:41:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:41:29,131 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:41:29,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:41:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2022-07-22 02:41:29,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 02:41:29,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571700348] [2022-07-22 02:41:29,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 02:41:29,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 02:41:29,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:41:29,160 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 02:41:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 02:41:29,186 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 02:41:29,324 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:41:29,324 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:41:29,325 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:41:29,325 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:41:29,325 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-22 02:41:29,325 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,325 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:41:29,325 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:41:29,325 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-2.c_Iteration1_Loop [2022-07-22 02:41:29,326 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:41:29,326 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:41:29,336 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,342 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,344 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,347 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,408 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:41:29,408 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-22 02:41:29,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,411 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 02:41:29,415 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:41:29,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:41:29,436 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:41:29,437 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#t~ret4=0} Honda state: {sum_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:41:29,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 02:41:29,467 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:41:29,467 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:41:29,487 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:41:29,488 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:41:29,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,506 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 02:41:29,509 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:41:29,509 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:41:29,530 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:41:29,530 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~n=0} Honda state: {sum_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:41:29,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,551 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-22 02:41:29,553 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:41:29,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:41:29,570 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-07-22 02:41:29,570 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-07-22 02:41:29,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,591 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-22 02:41:29,593 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-22 02:41:29,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:41:29,617 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,619 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-07-22 02:41:29,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-22 02:41:29,648 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-22 02:41:29,693 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-07-22 02:41:29,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,697 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 02:41:29,697 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 02:41:29,698 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 02:41:29,698 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 02:41:29,698 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 02:41:29,698 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,698 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 02:41:29,698 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 02:41:29,698 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum_15x0-2.c_Iteration1_Loop [2022-07-22 02:41:29,698 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 02:41:29,698 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 02:41:29,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,724 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 02:41:29,785 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 02:41:29,788 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 02:41:29,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,790 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-07-22 02:41:29,832 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:41:29,841 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:41:29,841 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:41:29,842 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:41:29,842 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:41:29,842 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:41:29,848 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:41:29,849 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:41:29,850 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:41:29,866 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-22 02:41:29,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,869 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,870 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-07-22 02:41:29,871 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:41:29,877 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:41:29,877 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:41:29,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:41:29,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:41:29,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:41:29,878 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:41:29,878 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:41:29,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:41:29,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,914 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-22 02:41:29,916 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:41:29,926 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:41:29,926 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:41:29,927 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:41:29,927 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:41:29,927 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:41:29,929 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:41:29,929 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:41:29,951 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:41:29,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:29,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:29,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:29,974 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:29,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-22 02:41:29,976 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:41:29,984 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:41:29,984 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:41:29,984 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:41:29,984 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:41:29,985 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:41:29,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:41:29,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:41:29,994 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 02:41:30,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:30,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:30,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:30,031 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:30,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-22 02:41:30,033 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 02:41:30,040 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 02:41:30,040 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 02:41:30,040 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 02:41:30,040 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 02:41:30,041 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 02:41:30,043 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 02:41:30,043 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 02:41:30,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 02:41:30,055 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-07-22 02:41:30,056 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-07-22 02:41:30,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 02:41:30,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 02:41:30,069 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-22 02:41:30,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-22 02:41:30,085 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 02:41:30,085 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-07-22 02:41:30,085 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 02:41:30,086 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2022-07-22 02:41:30,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:30,107 INFO L293 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-07-22 02:41:30,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 02:41:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:41:30,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 02:41:30,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:41:30,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-22 02:41:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 02:41:30,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 02:41:30,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 02:41:30,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 02:41:30,252 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 [2022-07-22 02:41:30,253 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:41:30,306 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 12 states. [2022-07-22 02:41:30,307 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 [2022-07-22 02:41:30,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-22 02:41:30,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2022-07-22 02:41:30,312 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2022-07-22 02:41:30,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:41:30,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2022-07-22 02:41:30,313 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:41:30,313 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2022-07-22 02:41:30,314 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 02:41:30,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2022-07-22 02:41:30,316 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:41:30,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2022-07-22 02:41:30,318 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 02:41:30,319 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 02:41:30,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 02:41:30,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 02:41:30,319 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:41:30,319 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:41:30,320 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 02:41:30,320 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 02:41:30,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 02:41:30,320 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 02:41:30,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 02:41:30,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 02:41:30 BoogieIcfgContainer [2022-07-22 02:41:30,325 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 02:41:30,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 02:41:30,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 02:41:30,326 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 02:41:30,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 02:41:28" (3/4) ... [2022-07-22 02:41:30,328 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 02:41:30,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 02:41:30,329 INFO L158 Benchmark]: Toolchain (without parser) took 1918.64ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 34.8MB in the beginning and 51.2MB in the end (delta: -16.5MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-07-22 02:41:30,329 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 37.4MB in the beginning and 37.4MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:41:30,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 157.04ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 34.6MB in the beginning and 63.9MB in the end (delta: -29.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-07-22 02:41:30,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.20ms. Allocated memory is still 81.8MB. Free memory was 63.9MB in the beginning and 64.8MB in the end (delta: -894.2kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-22 02:41:30,330 INFO L158 Benchmark]: Boogie Preprocessor took 15.22ms. Allocated memory is still 81.8MB. Free memory was 64.8MB in the beginning and 64.0MB in the end (delta: 845.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:41:30,330 INFO L158 Benchmark]: RCFGBuilder took 243.11ms. Allocated memory is still 81.8MB. Free memory was 64.0MB in the beginning and 55.6MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-22 02:41:30,331 INFO L158 Benchmark]: BuchiAutomizer took 1439.38ms. Allocated memory is still 81.8MB. Free memory was 55.6MB in the beginning and 51.7MB in the end (delta: 3.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-07-22 02:41:30,331 INFO L158 Benchmark]: Witness Printer took 2.57ms. Allocated memory is still 81.8MB. Free memory was 51.7MB in the beginning and 51.2MB in the end (delta: 426.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 02:41:30,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory was 37.4MB in the beginning and 37.4MB in the end (delta: 40.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 157.04ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 34.6MB in the beginning and 63.9MB in the end (delta: -29.3MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.20ms. Allocated memory is still 81.8MB. Free memory was 63.9MB in the beginning and 64.8MB in the end (delta: -894.2kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.22ms. Allocated memory is still 81.8MB. Free memory was 64.8MB in the beginning and 64.0MB in the end (delta: 845.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 243.11ms. Allocated memory is still 81.8MB. Free memory was 64.0MB in the beginning and 55.6MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1439.38ms. Allocated memory is still 81.8MB. Free memory was 55.6MB in the beginning and 51.7MB in the end (delta: 3.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 2.57ms. Allocated memory is still 81.8MB. Free memory was 51.7MB in the beginning and 51.2MB in the end (delta: 426.3kB). There was no memory consumed. Max. memory is 16.1GB. * 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 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 5 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp68 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 61ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-22 02:41:30,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE