./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/sum04-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/loops/sum04-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 18:34:10,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 18:34:10,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 18:34:10,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 18:34:10,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 18:34:10,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 18:34:10,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 18:34:10,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 18:34:10,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 18:34:10,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 18:34:10,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 18:34:10,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 18:34:10,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 18:34:10,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 18:34:10,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 18:34:10,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 18:34:10,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 18:34:10,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 18:34:10,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 18:34:10,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 18:34:10,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 18:34:10,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 18:34:10,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 18:34:10,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 18:34:10,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 18:34:10,235 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 18:34:10,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 18:34:10,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 18:34:10,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 18:34:10,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 18:34:10,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 18:34:10,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 18:34:10,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 18:34:10,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 18:34:10,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 18:34:10,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 18:34:10,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 18:34:10,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 18:34:10,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 18:34:10,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 18:34:10,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 18:34:10,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-19 18:34:10,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 18:34:10,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 18:34:10,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 18:34:10,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 18:34:10,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 18:34:10,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 18:34:10,278 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 18:34:10,278 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-19 18:34:10,278 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-19 18:34:10,279 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-19 18:34:10,279 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-19 18:34:10,279 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-19 18:34:10,280 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-19 18:34:10,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 18:34:10,280 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 18:34:10,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 18:34:10,280 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 18:34:10,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 18:34:10,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 18:34:10,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-19 18:34:10,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-19 18:34:10,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-19 18:34:10,282 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 18:34:10,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 18:34:10,282 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-19 18:34:10,282 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 18:34:10,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-19 18:34:10,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 18:34:10,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 18:34:10,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 18:34:10,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 18:34:10,283 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 18:34:10,284 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-19 18:34:10,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 363837b614bad810335bbe0c369ca77c24cc87938da6245b414371c201391312 [2021-12-19 18:34:10,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 18:34:10,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 18:34:10,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 18:34:10,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 18:34:10,523 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 18:34:10,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum04-1.i [2021-12-19 18:34:10,582 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee259f75c/ba70a551d5124b1b8d699cd384d39945/FLAG76575b3e3 [2021-12-19 18:34:10,967 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 18:34:10,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum04-1.i [2021-12-19 18:34:10,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee259f75c/ba70a551d5124b1b8d699cd384d39945/FLAG76575b3e3 [2021-12-19 18:34:11,377 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee259f75c/ba70a551d5124b1b8d699cd384d39945 [2021-12-19 18:34:11,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 18:34:11,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 18:34:11,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 18:34:11,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 18:34:11,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 18:34:11,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b01fb11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11, skipping insertion in model container [2021-12-19 18:34:11,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,393 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 18:34:11,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 18:34:11,541 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/loops/sum04-1.i[808,821] [2021-12-19 18:34:11,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:34:11,559 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 18:34:11,570 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/loops/sum04-1.i[808,821] [2021-12-19 18:34:11,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 18:34:11,593 INFO L208 MainTranslator]: Completed translation [2021-12-19 18:34:11,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11 WrapperNode [2021-12-19 18:34:11,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 18:34:11,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 18:34:11,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 18:34:11,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 18:34:11,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,617 INFO L137 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2021-12-19 18:34:11,618 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 18:34:11,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 18:34:11,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 18:34:11,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 18:34:11,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 18:34:11,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 18:34:11,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 18:34:11,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 18:34:11,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (1/1) ... [2021-12-19 18:34:11,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:11,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:11,664 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) [2021-12-19 18:34:11,673 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 [2021-12-19 18:34:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 18:34:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 18:34:11,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 18:34:11,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 18:34:11,755 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 18:34:11,757 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 18:34:11,866 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 18:34:11,871 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 18:34:11,872 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-19 18:34:11,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:11 BoogieIcfgContainer [2021-12-19 18:34:11,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 18:34:11,874 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-19 18:34:11,875 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-19 18:34:11,877 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-19 18:34:11,878 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:34:11,879 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.12 06:34:11" (1/3) ... [2021-12-19 18:34:11,880 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@370b7006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:34:11, skipping insertion in model container [2021-12-19 18:34:11,880 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:34:11,880 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 06:34:11" (2/3) ... [2021-12-19 18:34:11,881 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@370b7006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.12 06:34:11, skipping insertion in model container [2021-12-19 18:34:11,881 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-19 18:34:11,881 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:11" (3/3) ... [2021-12-19 18:34:11,882 INFO L388 chiAutomizerObserver]: Analyzing ICFG sum04-1.i [2021-12-19 18:34:11,931 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-19 18:34:11,932 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-19 18:34:11,932 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-19 18:34:11,932 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-19 18:34:11,932 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-19 18:34:11,932 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-19 18:34:11,932 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-19 18:34:11,933 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-19 18:34:11,945 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:11,960 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 18:34:11,961 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:11,961 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:11,966 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 18:34:11,966 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 18:34:11,966 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-19 18:34:11,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:11,968 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 18:34:11,968 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:11,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:11,969 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-19 18:34:11,969 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 18:34:11,976 INFO L791 eck$LassoCheckResult]: Stem: 6#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(10, 2); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 11#L24-3true [2021-12-19 18:34:11,976 INFO L793 eck$LassoCheckResult]: Loop: 11#L24-3true assume !!(main_~i~0#1 <= 8); 8#L25true assume main_~i~0#1 < 4;main_~sn~0#1 := 2 + main_~sn~0#1; 7#L24-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 11#L24-3true [2021-12-19 18:34:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:11,980 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-19 18:34:11,992 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:11,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887446587] [2021-12-19 18:34:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:11,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:12,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:12,065 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:12,097 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:12,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:12,100 INFO L85 PathProgramCache]: Analyzing trace with hash 39821, now seen corresponding path program 1 times [2021-12-19 18:34:12,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:12,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674422936] [2021-12-19 18:34:12,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:12,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:12,117 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:12,125 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:12,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:12,126 INFO L85 PathProgramCache]: Analyzing trace with hash 28698763, now seen corresponding path program 1 times [2021-12-19 18:34:12,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:12,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627097972] [2021-12-19 18:34:12,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:12,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:12,148 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:12,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:12,281 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:12,282 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:12,282 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:12,282 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:12,282 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 18:34:12,282 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,283 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:12,283 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:12,283 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2021-12-19 18:34:12,283 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:12,283 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:12,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:12,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:12,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:12,364 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:12,365 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 18:34:12,366 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,368 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) [2021-12-19 18:34:12,369 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 [2021-12-19 18:34:12,370 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:12,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:12,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-12-19 18:34:12,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,400 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) [2021-12-19 18:34:12,401 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 [2021-12-19 18:34:12,402 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:12,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:12,438 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:12,439 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~sn~0#1=0} Honda state: {ULTIMATE.start_main_~sn~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_main_~sn~0#1=3}, {ULTIMATE.start_main_~sn~0#1=-1}, {ULTIMATE.start_main_~sn~0#1=0}] Lambdas: [1, 1, 0] Nus: [0, 0] [2021-12-19 18:34:12,461 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 [2021-12-19 18:34:12,461 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,464 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) [2021-12-19 18:34:12,467 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 [2021-12-19 18:34:12,471 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:12,472 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:12,479 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:12,479 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 18:34:12,500 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 [2021-12-19 18:34:12,500 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,501 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) [2021-12-19 18:34:12,516 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 [2021-12-19 18:34:12,517 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:12,517 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:12,555 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 [2021-12-19 18:34:12,556 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,557 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) [2021-12-19 18:34:12,559 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 [2021-12-19 18:34:12,560 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:12,560 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:12,594 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 18:34:12,599 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 [2021-12-19 18:34:12,599 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:12,599 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:12,599 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:12,599 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:12,599 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 18:34:12,600 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,600 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:12,600 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:12,600 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration1_Loop [2021-12-19 18:34:12,600 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:12,600 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:12,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:12,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:12,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:12,650 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:12,654 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 18:34:12,655 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,656 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) [2021-12-19 18:34:12,657 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 [2021-12-19 18:34:12,658 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 [2021-12-19 18:34:12,665 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:12,665 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:12,666 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:12,666 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:12,666 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:12,667 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:12,668 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:12,675 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:12,690 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 [2021-12-19 18:34:12,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,692 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) [2021-12-19 18:34:12,693 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 [2021-12-19 18:34:12,694 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 [2021-12-19 18:34:12,700 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:12,700 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:12,700 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:12,700 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:12,700 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:12,702 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:12,702 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:12,707 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:12,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:12,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,726 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) [2021-12-19 18:34:12,738 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 [2021-12-19 18:34:12,739 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 [2021-12-19 18:34:12,747 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:12,747 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:12,747 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:12,747 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:12,748 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:12,749 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:12,749 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:12,752 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 18:34:12,771 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 18:34:12,772 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 18:34:12,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:12,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:12,779 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) [2021-12-19 18:34:12,784 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 18:34:12,784 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 18:34:12,785 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 18:34:12,785 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7 Supporting invariants [] [2021-12-19 18:34:12,800 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 [2021-12-19 18:34:12,808 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 [2021-12-19 18:34:12,810 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 18:34:12,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:12,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:12,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:12,867 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:12,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:12,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:12,923 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-19 18:34:12,924 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:12,961 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 35 states and 47 transitions. Complement of second has 7 states. [2021-12-19 18:34:12,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-12-19 18:34:12,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 26 transitions. [2021-12-19 18:34:12,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 3 letters. [2021-12-19 18:34:12,968 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:12,968 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-19 18:34:12,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:12,969 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 26 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-19 18:34:12,969 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:12,970 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 47 transitions. [2021-12-19 18:34:12,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 18:34:12,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 15 transitions. [2021-12-19 18:34:12,975 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2021-12-19 18:34:12,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2021-12-19 18:34:12,976 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2021-12-19 18:34:12,976 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2021-12-19 18:34:12,976 INFO L681 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2021-12-19 18:34:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2021-12-19 18:34:12,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2021-12-19 18:34:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:12,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-12-19 18:34:12,997 INFO L704 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-19 18:34:12,997 INFO L587 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-12-19 18:34:12,997 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-19 18:34:12,997 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2021-12-19 18:34:12,998 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-12-19 18:34:12,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-19 18:34:12,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-19 18:34:12,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-19 18:34:12,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-19 18:34:12,999 INFO L791 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY 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(10, 2); 90#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~post1#1, main_~i~0#1, main_~sn~0#1;havoc main_~i~0#1;main_~sn~0#1 := 0;main_~i~0#1 := 1; 99#L24-3 assume !!(main_~i~0#1 <= 8); 95#L25 [2021-12-19 18:34:12,999 INFO L793 eck$LassoCheckResult]: Loop: 95#L25 assume !(main_~i~0#1 < 4); 91#L24-2 main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 92#L24-3 assume !!(main_~i~0#1 <= 8); 95#L25 [2021-12-19 18:34:12,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:12,999 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2021-12-19 18:34:13,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:13,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949237014] [2021-12-19 18:34:13,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:13,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:13,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:13,005 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:13,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:13,010 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:13,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:13,010 INFO L85 PathProgramCache]: Analyzing trace with hash 44743, now seen corresponding path program 1 times [2021-12-19 18:34:13,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:13,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190239000] [2021-12-19 18:34:13,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:13,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:13,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:13,014 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-19 18:34:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-19 18:34:13,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-19 18:34:13,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:13,017 INFO L85 PathProgramCache]: Analyzing trace with hash 889663585, now seen corresponding path program 1 times [2021-12-19 18:34:13,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 18:34:13,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815971858] [2021-12-19 18:34:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 18:34:13,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 18:34:13,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:13,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:13,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 18:34:13,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815971858] [2021-12-19 18:34:13,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815971858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 18:34:13,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 18:34:13,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 18:34:13,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153465540] [2021-12-19 18:34:13,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 18:34:13,078 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:13,078 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:13,078 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:13,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:13,079 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-19 18:34:13,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,079 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:13,079 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:13,079 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2021-12-19 18:34:13,079 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:13,079 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:13,080 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:13,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:13,103 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:13,103 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-19 18:34:13,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:13,105 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) [2021-12-19 18:34:13,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:13,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:13,123 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 [2021-12-19 18:34:13,132 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-19 18:34:13,132 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post1#1=0} Honda state: {ULTIMATE.start_main_#t~post1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-19 18:34:13,156 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 [2021-12-19 18:34:13,157 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:13,160 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) [2021-12-19 18:34:13,167 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 [2021-12-19 18:34:13,204 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-19 18:34:13,204 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:13,229 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 [2021-12-19 18:34:13,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:13,231 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) [2021-12-19 18:34:13,231 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 [2021-12-19 18:34:13,233 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-19 18:34:13,233 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-19 18:34:13,284 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-19 18:34:13,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2021-12-19 18:34:13,288 INFO L210 LassoAnalysis]: Preferences: [2021-12-19 18:34:13,288 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-19 18:34:13,288 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-19 18:34:13,288 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-19 18:34:13,288 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-19 18:34:13,288 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,288 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-19 18:34:13,288 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-19 18:34:13,288 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum04-1.i_Iteration2_Loop [2021-12-19 18:34:13,288 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-19 18:34:13,288 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-19 18:34:13,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:13,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-19 18:34:13,320 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-19 18:34:13,321 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-19 18:34:13,321 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:13,322 INFO L229 MonitoredProcess]: Starting monitored process 14 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) [2021-12-19 18:34:13,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2021-12-19 18:34:13,328 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 [2021-12-19 18:34:13,336 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:13,336 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:13,336 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:13,336 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:13,336 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:13,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:13,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:13,350 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-19 18:34:13,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:13,376 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:13,377 INFO L229 MonitoredProcess]: Starting monitored process 15 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) [2021-12-19 18:34:13,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2021-12-19 18:34:13,379 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 [2021-12-19 18:34:13,385 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-19 18:34:13,386 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-19 18:34:13,386 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-19 18:34:13,386 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-19 18:34:13,386 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-19 18:34:13,387 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-19 18:34:13,387 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-19 18:34:13,391 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-19 18:34:13,393 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-19 18:34:13,393 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2021-12-19 18:34:13,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-19 18:34:13,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 18:34:13,397 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2021-12-19 18:34:13,398 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-19 18:34:13,398 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-19 18:34:13,399 INFO L513 LassoAnalysis]: Proved termination. [2021-12-19 18:34:13,399 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 15 Supporting invariants [] [2021-12-19 18:34:13,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2021-12-19 18:34:13,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:13,418 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-19 18:34:13,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 18:34:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:13,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-19 18:34:13,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 18:34:13,447 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-19 18:34:13,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 18:34:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 18:34:13,478 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-12-19 18:34:13,478 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:13,494 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 18 states and 22 transitions. Complement of second has 6 states. [2021-12-19 18:34:13,494 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 [2021-12-19 18:34:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2021-12-19 18:34:13,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 3 letters. [2021-12-19 18:34:13,495 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:13,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2021-12-19 18:34:13,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:13,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 3 letters. Loop has 6 letters. [2021-12-19 18:34:13,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-19 18:34:13,496 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2021-12-19 18:34:13,497 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:34:13,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2021-12-19 18:34:13,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 18:34:13,497 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 18:34:13,497 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 18:34:13,497 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 18:34:13,497 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:13,497 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:13,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 18:34:13,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 18:34:13,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 18:34:13,501 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 18:34:13,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 18:34:13,502 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2021-12-19 18:34:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-19 18:34:13,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2021-12-19 18:34:13,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:34:13,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2021-12-19 18:34:13,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-19 18:34:13,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-19 18:34:13,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-19 18:34:13,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-19 18:34:13,504 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:13,504 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:13,504 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-19 18:34:13,504 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-19 18:34:13,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-19 18:34:13,504 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-19 18:34:13,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-19 18:34:13,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.12 06:34:13 BoogieIcfgContainer [2021-12-19 18:34:13,509 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-19 18:34:13,510 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-19 18:34:13,510 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-19 18:34:13,510 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-19 18:34:13,510 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 06:34:11" (3/4) ... [2021-12-19 18:34:13,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-19 18:34:13,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-19 18:34:13,513 INFO L158 Benchmark]: Toolchain (without parser) took 2133.52ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 51.7MB in the end (delta: 8.4MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2021-12-19 18:34:13,514 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:34:13,514 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.59ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 59.9MB in the beginning and 88.0MB in the end (delta: -28.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 18:34:13,515 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.44ms. Allocated memory is still 111.1MB. Free memory was 88.0MB in the beginning and 86.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-19 18:34:13,515 INFO L158 Benchmark]: Boogie Preprocessor took 13.43ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 85.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:34:13,515 INFO L158 Benchmark]: RCFGBuilder took 241.20ms. Allocated memory is still 111.1MB. Free memory was 85.4MB in the beginning and 76.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-19 18:34:13,516 INFO L158 Benchmark]: BuchiAutomizer took 1635.10ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 52.3MB in the end (delta: 24.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-12-19 18:34:13,516 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 111.1MB. Free memory was 52.3MB in the beginning and 51.7MB in the end (delta: 644.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-19 18:34:13,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.59ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 59.9MB in the beginning and 88.0MB in the end (delta: -28.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.44ms. Allocated memory is still 111.1MB. Free memory was 88.0MB in the beginning and 86.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.43ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 85.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 241.20ms. Allocated memory is still 111.1MB. Free memory was 85.4MB in the beginning and 76.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1635.10ms. Allocated memory is still 111.1MB. Free memory was 76.6MB in the beginning and 52.3MB in the end (delta: 24.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 111.1MB. Free memory was 52.3MB in the beginning and 51.7MB in the end (delta: 644.8kB). 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 7 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 15 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 11 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie105 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-19 18:34:13,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2021-12-19 18:34:13,753 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 [2021-12-19 18:34:13,955 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