./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ff03de63 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/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 21:56:19,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 21:56:19,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 21:56:19,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 21:56:19,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 21:56:19,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 21:56:19,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 21:56:19,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 21:56:19,550 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 21:56:19,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 21:56:19,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 21:56:19,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 21:56:19,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 21:56:19,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 21:56:19,555 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 21:56:19,556 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 21:56:19,557 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 21:56:19,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 21:56:19,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 21:56:19,561 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 21:56:19,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 21:56:19,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 21:56:19,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 21:56:19,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 21:56:19,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 21:56:19,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 21:56:19,568 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 21:56:19,569 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 21:56:19,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 21:56:19,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 21:56:19,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 21:56:19,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 21:56:19,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 21:56:19,572 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 21:56:19,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 21:56:19,574 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 21:56:19,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 21:56:19,574 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 21:56:19,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 21:56:19,576 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 21:56:19,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 21:56:19,577 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-21 21:56:19,596 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 21:56:19,596 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 21:56:19,597 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 21:56:19,597 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 21:56:19,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 21:56:19,598 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 21:56:19,598 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 21:56:19,598 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-21 21:56:19,599 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-21 21:56:19,599 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-21 21:56:19,599 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-21 21:56:19,599 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-21 21:56:19,599 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-21 21:56:19,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 21:56:19,600 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-21 21:56:19,600 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 21:56:19,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 21:56:19,600 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-21 21:56:19,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-21 21:56:19,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-21 21:56:19,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 21:56:19,601 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-21 21:56:19,601 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 21:56:19,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-21 21:56:19,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 21:56:19,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 21:56:19,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 21:56:19,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 21:56:19,602 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 21:56:19,603 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-21 21:56:19,603 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 [2021-12-21 21:56:19,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 21:56:19,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 21:56:19,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 21:56:19,813 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 21:56:19,814 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 21:56:19,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-12-21 21:56:19,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91275420e/4225e0ab8f7d4e2e9d51d1218ac3c836/FLAG90778bbad [2021-12-21 21:56:20,294 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 21:56:20,295 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-12-21 21:56:20,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91275420e/4225e0ab8f7d4e2e9d51d1218ac3c836/FLAG90778bbad [2021-12-21 21:56:20,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91275420e/4225e0ab8f7d4e2e9d51d1218ac3c836 [2021-12-21 21:56:20,315 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 21:56:20,316 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 21:56:20,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 21:56:20,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 21:56:20,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 21:56:20,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fcf06ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20, skipping insertion in model container [2021-12-21 21:56:20,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 21:56:20,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 21:56:20,460 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:56:20,476 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 21:56:20,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 21:56:20,495 INFO L208 MainTranslator]: Completed translation [2021-12-21 21:56:20,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20 WrapperNode [2021-12-21 21:56:20,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 21:56:20,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 21:56:20,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 21:56:20,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 21:56:20,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,522 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 22 [2021-12-21 21:56:20,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 21:56:20,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 21:56:20,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 21:56:20,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 21:56:20,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,532 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 21:56:20,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 21:56:20,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 21:56:20,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 21:56:20,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (1/1) ... [2021-12-21 21:56:20,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:20,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:20,572 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) [2021-12-21 21:56:20,584 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 [2021-12-21 21:56:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 21:56:20,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 21:56:20,652 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 21:56:20,654 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 21:56:20,731 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 21:56:20,737 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 21:56:20,737 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 21:56:20,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:56:20 BoogieIcfgContainer [2021-12-21 21:56:20,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 21:56:20,741 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-21 21:56:20,741 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-21 21:56:20,743 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-21 21:56:20,744 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:56:20,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.12 09:56:20" (1/3) ... [2021-12-21 21:56:20,745 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f356301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:56:20, skipping insertion in model container [2021-12-21 21:56:20,745 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:56:20,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 09:56:20" (2/3) ... [2021-12-21 21:56:20,746 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4f356301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.12 09:56:20, skipping insertion in model container [2021-12-21 21:56:20,746 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-21 21:56:20,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:56:20" (3/3) ... [2021-12-21 21:56:20,747 INFO L388 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig3.c [2021-12-21 21:56:20,792 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-21 21:56:20,793 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-21 21:56:20,793 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-21 21:56:20,793 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-21 21:56:20,793 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-21 21:56:20,793 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-21 21:56:20,793 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-21 21:56:20,793 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-21 21:56:20,804 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-12-21 21:56:20,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 21:56:20,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:20,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:20,824 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:56:20,824 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-21 21:56:20,824 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-21 21:56:20,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-12-21 21:56:20,826 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2021-12-21 21:56:20,826 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-21 21:56:20,826 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-21 21:56:20,827 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-21 21:56:20,827 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-21 21:56:20,832 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1;~x~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L23-2true [2021-12-21 21:56:20,833 INFO L793 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(~x~0 > 0); 6#L23true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;assume { :begin_inline_foo } true;havoc foo_#t~post0#1;foo_#t~post0#1 := ~x~0;~x~0 := foo_#t~post0#1 - 1;havoc foo_#t~post0#1; 11#L14-1true assume { :end_inline_foo } true; 5#L23-2true [2021-12-21 21:56:20,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:20,840 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-21 21:56:20,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:20,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368800887] [2021-12-21 21:56:20,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:20,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:20,915 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:20,943 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:20,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:20,948 INFO L85 PathProgramCache]: Analyzing trace with hash 40940, now seen corresponding path program 1 times [2021-12-21 21:56:20,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:20,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271782403] [2021-12-21 21:56:20,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:20,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:20,964 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:20,976 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:20,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:20,978 INFO L85 PathProgramCache]: Analyzing trace with hash 28699882, now seen corresponding path program 1 times [2021-12-21 21:56:20,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 21:56:20,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312124757] [2021-12-21 21:56:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 21:56:20,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 21:56:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:20,985 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 21:56:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 21:56:20,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 21:56:21,084 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:21,085 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:21,085 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:21,085 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:21,085 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-12-21 21:56:21,085 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,085 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:21,086 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:21,086 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2021-12-21 21:56:21,086 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:21,086 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:21,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:21,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:21,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:21,150 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:21,159 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-12-21 21:56:21,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,163 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) [2021-12-21 21:56:21,164 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 [2021-12-21 21:56:21,166 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:21,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:21,204 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:21,204 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:56:21,229 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 [2021-12-21 21:56:21,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,236 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) [2021-12-21 21:56:21,237 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 [2021-12-21 21:56:21,241 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:21,241 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:21,263 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-12-21 21:56:21,264 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post0#1=0} Honda state: {ULTIMATE.start_foo_#t~post0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-12-21 21:56:21,288 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 [2021-12-21 21:56:21,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,290 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) [2021-12-21 21:56:21,298 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-12-21 21:56:21,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:21,301 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 [2021-12-21 21:56:21,355 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 [2021-12-21 21:56:21,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,356 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) [2021-12-21 21:56:21,358 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 [2021-12-21 21:56:21,359 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-12-21 21:56:21,359 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-12-21 21:56:21,403 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-12-21 21:56:21,407 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 [2021-12-21 21:56:21,407 INFO L210 LassoAnalysis]: Preferences: [2021-12-21 21:56:21,408 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-21 21:56:21,408 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-21 21:56:21,408 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-21 21:56:21,408 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-21 21:56:21,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-21 21:56:21,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-21 21:56:21,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2021-12-21 21:56:21,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-21 21:56:21,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-21 21:56:21,409 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:21,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:21,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-21 21:56:21,464 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-21 21:56:21,468 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-21 21:56:21,469 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,470 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) [2021-12-21 21:56:21,479 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 [2021-12-21 21:56:21,479 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 [2021-12-21 21:56:21,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:21,488 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:21,488 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:21,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:21,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:21,490 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:21,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:21,505 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:21,521 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 [2021-12-21 21:56:21,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,521 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,522 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) [2021-12-21 21:56:21,524 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 [2021-12-21 21:56:21,526 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 [2021-12-21 21:56:21,534 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:21,534 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:21,534 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:21,534 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:21,534 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:21,535 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:21,535 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:21,551 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-21 21:56:21,567 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 [2021-12-21 21:56:21,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,568 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) [2021-12-21 21:56:21,570 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 [2021-12-21 21:56:21,570 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 [2021-12-21 21:56:21,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-21 21:56:21,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-21 21:56:21,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-21 21:56:21,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-21 21:56:21,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-21 21:56:21,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-21 21:56:21,580 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-21 21:56:21,592 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-21 21:56:21,595 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-12-21 21:56:21,595 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-12-21 21:56:21,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-21 21:56:21,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 21:56:21,644 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) [2021-12-21 21:56:21,645 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 [2021-12-21 21:56:21,646 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-21 21:56:21,646 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-12-21 21:56:21,647 INFO L513 LassoAnalysis]: Proved termination. [2021-12-21 21:56:21,647 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2021-12-21 21:56:21,662 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 [2021-12-21 21:56:21,665 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-12-21 21:56:21,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 21:56:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:21,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-21 21:56:21,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 21:56:21,730 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-21 21:56:21,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 21:56:21,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 21:56:21,825 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2021-12-21 21:56:21,826 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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) [2021-12-21 21:56:21,863 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 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 23 states and 28 transitions. Complement of second has 7 states. [2021-12-21 21:56:21,865 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 [2021-12-21 21:56:21,869 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) [2021-12-21 21:56:21,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2021-12-21 21:56:21,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2021-12-21 21:56:21,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:21,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2021-12-21 21:56:21,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:21,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2021-12-21 21:56:21,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-21 21:56:21,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. [2021-12-21 21:56:21,877 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:21,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2021-12-21 21:56:21,880 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-21 21:56:21,880 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-21 21:56:21,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-21 21:56:21,881 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-21 21:56:21,881 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:21,881 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:21,881 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-21 21:56:21,881 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-21 21:56:21,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-21 21:56:21,881 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-21 21:56:21,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-21 21:56:21,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.12 09:56:21 BoogieIcfgContainer [2021-12-21 21:56:21,888 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-21 21:56:21,888 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 21:56:21,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 21:56:21,889 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 21:56:21,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 09:56:20" (3/4) ... [2021-12-21 21:56:21,891 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 21:56:21,892 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 21:56:21,893 INFO L158 Benchmark]: Toolchain (without parser) took 1575.72ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 74.5MB in the beginning and 90.0MB in the end (delta: -15.6MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-12-21 21:56:21,894 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 58.7MB in the beginning and 58.6MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:21,894 INFO L158 Benchmark]: CACSL2BoogieTranslator took 176.88ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 79.3MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 21:56:21,895 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.67ms. Allocated memory is still 100.7MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:21,895 INFO L158 Benchmark]: Boogie Preprocessor took 14.95ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 77.2MB in the end (delta: 868.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:21,895 INFO L158 Benchmark]: RCFGBuilder took 199.36ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 69.1MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 21:56:21,896 INFO L158 Benchmark]: BuchiAutomizer took 1147.08ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 69.1MB in the beginning and 90.3MB in the end (delta: -21.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2021-12-21 21:56:21,896 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 132.1MB. Free memory was 90.3MB in the beginning and 90.0MB in the end (delta: 324.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 21:56:21,899 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 100.7MB. Free memory was 58.7MB in the beginning and 58.6MB in the end (delta: 46.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 176.88ms. Allocated memory is still 100.7MB. Free memory was 74.2MB in the beginning and 79.3MB in the end (delta: -5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.67ms. Allocated memory is still 100.7MB. Free memory was 79.3MB in the beginning and 78.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.95ms. Allocated memory is still 100.7MB. Free memory was 78.1MB in the beginning and 77.2MB in the end (delta: 868.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 199.36ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 69.1MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1147.08ms. Allocated memory was 100.7MB in the beginning and 132.1MB in the end (delta: 31.5MB). Free memory was 69.1MB in the beginning and 90.3MB in the end (delta: -21.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 132.1MB. Free memory was 90.3MB in the beginning and 90.0MB in the end (delta: 324.7kB). 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 x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 36ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-21 21:56:21,926 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 [2021-12-21 21:56:22,131 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE