./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version ae007674 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-memory-alloca/cstrlen-alloca-1.i -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 55b7e97c43627abc3b3fb7d9c27999e540608fa7f6d0b7e81ad0fc505311daee --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 09:09:40,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 09:09:40,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 09:09:40,552 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 09:09:40,553 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 09:09:40,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 09:09:40,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 09:09:40,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 09:09:40,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 09:09:40,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 09:09:40,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 09:09:40,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 09:09:40,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 09:09:40,573 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 09:09:40,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 09:09:40,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 09:09:40,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 09:09:40,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 09:09:40,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 09:09:40,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 09:09:40,586 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 09:09:40,587 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 09:09:40,588 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 09:09:40,589 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 09:09:40,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 09:09:40,593 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 09:09:40,593 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 09:09:40,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 09:09:40,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 09:09:40,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 09:09:40,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 09:09:40,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 09:09:40,605 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 09:09:40,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 09:09:40,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 09:09:40,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 09:09:40,608 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 09:09:40,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 09:09:40,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 09:09:40,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 09:09:40,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 09:09:40,610 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-28 09:09:40,641 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 09:09:40,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 09:09:40,642 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 09:09:40,643 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 09:09:40,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 09:09:40,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 09:09:40,645 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 09:09:40,645 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-28 09:09:40,645 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-28 09:09:40,645 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-28 09:09:40,646 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-28 09:09:40,646 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-28 09:09:40,646 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-28 09:09:40,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 09:09:40,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 09:09:40,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 09:09:40,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 09:09:40,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-28 09:09:40,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-28 09:09:40,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-28 09:09:40,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 09:09:40,648 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-28 09:09:40,648 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 09:09:40,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-28 09:09:40,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 09:09:40,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 09:09:40,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 09:09:40,649 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 09:09:40,650 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-28 09:09:40,650 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55b7e97c43627abc3b3fb7d9c27999e540608fa7f6d0b7e81ad0fc505311daee [2021-12-28 09:09:40,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 09:09:40,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 09:09:41,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 09:09:41,002 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 09:09:41,005 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 09:09:41,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2021-12-28 09:09:41,101 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46723c9d/e153ed3798814f43b5854d3be525f606/FLAG687105515 [2021-12-28 09:09:41,564 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 09:09:41,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/cstrlen-alloca-1.i [2021-12-28 09:09:41,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46723c9d/e153ed3798814f43b5854d3be525f606/FLAG687105515 [2021-12-28 09:09:42,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f46723c9d/e153ed3798814f43b5854d3be525f606 [2021-12-28 09:09:42,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 09:09:42,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 09:09:42,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 09:09:42,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 09:09:42,112 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 09:09:42,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1c54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42, skipping insertion in model container [2021-12-28 09:09:42,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 09:09:42,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 09:09:42,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:09:42,318 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 09:09:42,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 09:09:42,391 INFO L208 MainTranslator]: Completed translation [2021-12-28 09:09:42,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42 WrapperNode [2021-12-28 09:09:42,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 09:09:42,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 09:09:42,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 09:09:42,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 09:09:42,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,431 INFO L137 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-12-28 09:09:42,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 09:09:42,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 09:09:42,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 09:09:42,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 09:09:42,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,450 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,473 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 09:09:42,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 09:09:42,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 09:09:42,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 09:09:42,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (1/1) ... [2021-12-28 09:09:42,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:42,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:42,520 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) [2021-12-28 09:09:42,539 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 [2021-12-28 09:09:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 09:09:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 09:09:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 09:09:42,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 09:09:42,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 09:09:42,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 09:09:42,611 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 09:09:42,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 09:09:42,716 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 09:09:42,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 09:09:42,721 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 09:09:42,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:09:42 BoogieIcfgContainer [2021-12-28 09:09:42,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 09:09:42,723 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-28 09:09:42,723 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-28 09:09:42,725 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-28 09:09:42,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:09:42,726 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.12 09:09:42" (1/3) ... [2021-12-28 09:09:42,726 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14cde014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:09:42, skipping insertion in model container [2021-12-28 09:09:42,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:09:42,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 09:09:42" (2/3) ... [2021-12-28 09:09:42,727 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14cde014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.12 09:09:42, skipping insertion in model container [2021-12-28 09:09:42,727 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-28 09:09:42,727 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:09:42" (3/3) ... [2021-12-28 09:09:42,728 INFO L388 chiAutomizerObserver]: Analyzing ICFG cstrlen-alloca-1.i [2021-12-28 09:09:42,757 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-28 09:09:42,757 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-28 09:09:42,757 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-28 09:09:42,757 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-28 09:09:42,758 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-28 09:09:42,758 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-28 09:09:42,758 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-28 09:09:42,758 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-28 09:09:42,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-12-28 09:09:42,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-28 09:09:42,778 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:09:42,778 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:09:42,782 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-28 09:09:42,782 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-28 09:09:42,782 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-28 09:09:42,782 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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) [2021-12-28 09:09:42,783 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-12-28 09:09:42,783 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-28 09:09:42,783 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-28 09:09:42,784 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-28 09:09:42,784 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-12-28 09:09:42,788 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~ret6#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 6#L556true assume !(main_~length1~0#1 < 1); 7#L556-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1);assume { :begin_inline_cstrlen } true;cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset := main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;havoc cstrlen_#res#1;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset, cstrlen_#t~mem2#1, cstrlen_~s#1.base, cstrlen_~s#1.offset, cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~s#1.base, cstrlen_~s#1.offset := cstrlen_#in~s#1.base, cstrlen_#in~s#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_~s#1.base, cstrlen_~s#1.offset; 9#L550-3true [2021-12-28 09:09:42,788 INFO L793 eck$LassoCheckResult]: Loop: 9#L550-3true call cstrlen_#t~mem2#1 := read~int(cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset, 1); 11#L550-1true assume !!(0 != cstrlen_#t~mem2#1);havoc cstrlen_#t~mem2#1;cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset := cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset;cstrlen_~p~0#1.base, cstrlen_~p~0#1.offset := cstrlen_#t~post3#1.base, 1 + cstrlen_#t~post3#1.offset;havoc cstrlen_#t~post3#1.base, cstrlen_#t~post3#1.offset; 9#L550-3true [2021-12-28 09:09:42,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:42,792 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2021-12-28 09:09:42,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:42,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174766263] [2021-12-28 09:09:42,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:42,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:42,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:42,919 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:42,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:42,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:42,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2021-12-28 09:09:42,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:42,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487808187] [2021-12-28 09:09:42,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:42,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:42,974 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:42,986 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:42,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:42,987 INFO L85 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2021-12-28 09:09:42,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 09:09:42,988 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315088090] [2021-12-28 09:09:42,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 09:09:42,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 09:09:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:43,018 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-28 09:09:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-28 09:09:43,044 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-28 09:09:43,355 INFO L210 LassoAnalysis]: Preferences: [2021-12-28 09:09:43,356 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-12-28 09:09:43,356 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-12-28 09:09:43,357 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-12-28 09:09:43,357 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-12-28 09:09:43,357 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:43,357 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-12-28 09:09:43,357 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-12-28 09:09:43,358 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrlen-alloca-1.i_Iteration1_Lasso [2021-12-28 09:09:43,358 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-12-28 09:09:43,358 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-12-28 09:09:43,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,381 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,385 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,539 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-12-28 09:09:43,736 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-12-28 09:09:43,739 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-12-28 09:09:43,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:43,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:43,741 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) [2021-12-28 09:09:43,764 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 [2021-12-28 09:09:43,772 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:43,772 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:43,772 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:43,772 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:43,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:43,773 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 [2021-12-28 09:09:43,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:43,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:43,779 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:43,797 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 [2021-12-28 09:09:43,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:43,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:43,799 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) [2021-12-28 09:09:43,800 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 [2021-12-28 09:09:43,802 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 [2021-12-28 09:09:43,808 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:43,808 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:43,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:43,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:43,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:43,809 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:43,809 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:43,824 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:43,842 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 [2021-12-28 09:09:43,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:43,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:43,843 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) [2021-12-28 09:09:43,844 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 [2021-12-28 09:09:43,868 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 [2021-12-28 09:09:43,875 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:43,875 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:43,875 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:43,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:43,879 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:43,879 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:43,894 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:43,909 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 [2021-12-28 09:09:43,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:43,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:43,910 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) [2021-12-28 09:09:43,921 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 [2021-12-28 09:09:43,924 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 [2021-12-28 09:09:43,930 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:43,930 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:43,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:43,931 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:43,931 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:43,935 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:43,936 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:43,938 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:43,958 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 [2021-12-28 09:09:43,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:43,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:43,960 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) [2021-12-28 09:09:43,960 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 [2021-12-28 09:09:43,962 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 [2021-12-28 09:09:43,968 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:43,969 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:43,969 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:43,969 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:43,970 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:43,970 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:43,981 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:44,010 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 [2021-12-28 09:09:44,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,012 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) [2021-12-28 09:09:44,013 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 [2021-12-28 09:09:44,019 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 [2021-12-28 09:09:44,026 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:44,026 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:44,026 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:44,026 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:44,026 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:44,027 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:44,027 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:44,028 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:44,043 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 [2021-12-28 09:09:44,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,045 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) [2021-12-28 09:09:44,046 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 [2021-12-28 09:09:44,047 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 [2021-12-28 09:09:44,053 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:44,053 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:44,053 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:44,053 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:44,055 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:44,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:44,067 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:44,082 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 [2021-12-28 09:09:44,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,084 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) [2021-12-28 09:09:44,084 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 [2021-12-28 09:09:44,086 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 [2021-12-28 09:09:44,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:44,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:44,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:44,093 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:44,093 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:44,115 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:44,115 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:44,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:44,136 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 [2021-12-28 09:09:44,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,149 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) [2021-12-28 09:09:44,150 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 [2021-12-28 09:09:44,152 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 [2021-12-28 09:09:44,157 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:44,158 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-12-28 09:09:44,158 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:44,158 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:44,158 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:44,158 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-12-28 09:09:44,158 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-12-28 09:09:44,166 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:44,181 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 [2021-12-28 09:09:44,182 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,183 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) [2021-12-28 09:09:44,185 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 [2021-12-28 09:09:44,218 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 [2021-12-28 09:09:44,224 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:44,224 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:44,224 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:44,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:44,226 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:44,226 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:44,236 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-12-28 09:09:44,251 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 [2021-12-28 09:09:44,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,253 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) [2021-12-28 09:09:44,254 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 [2021-12-28 09:09:44,255 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 [2021-12-28 09:09:44,262 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-12-28 09:09:44,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-12-28 09:09:44,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-12-28 09:09:44,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-12-28 09:09:44,269 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-12-28 09:09:44,269 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-12-28 09:09:44,287 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-12-28 09:09:44,299 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2021-12-28 09:09:44,299 INFO L444 ModelExtractionUtils]: 17 out of 28 variables were initially zero. Simplification set additionally 8 variables to zero. [2021-12-28 09:09:44,300 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-28 09:09:44,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 09:09:44,308 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) [2021-12-28 09:09:44,334 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-12-28 09:09:44,342 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 [2021-12-28 09:09:44,355 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-12-28 09:09:44,355 INFO L513 LassoAnalysis]: Proved termination. [2021-12-28 09:09:44,356 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0#1.offset, v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1) = -1*ULTIMATE.start_cstrlen_~p~0#1.offset + 1*v_rep(select #length ULTIMATE.start_main_#t~malloc5#1.base)_1 Supporting invariants [] [2021-12-28 09:09:44,374 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 [2021-12-28 09:09:44,382 INFO L297 tatePredicateManager]: 3 out of 4 supporting invariants were superfluous and have been removed [2021-12-28 09:09:44,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 09:09:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:44,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-28 09:09:44,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 09:09:44,454 WARN L261 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 09:09:44,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 09:09:44,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 09:09:44,502 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2021-12-28 09:09:44,514 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 [2021-12-28 09:09:44,515 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 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) [2021-12-28 09:09:44,550 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 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 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) Result 20 states and 23 transitions. Complement of second has 6 states. [2021-12-28 09:09:44,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2021-12-28 09:09:44,554 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2021-12-28 09:09:44,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2021-12-28 09:09:44,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 2 letters. [2021-12-28 09:09:44,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:44,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 6 letters. Loop has 2 letters. [2021-12-28 09:09:44,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:44,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2021-12-28 09:09:44,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-12-28 09:09:44,556 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2021-12-28 09:09:44,557 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:09:44,558 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2021-12-28 09:09:44,559 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-12-28 09:09:44,559 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-12-28 09:09:44,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-12-28 09:09:44,559 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-28 09:09:44,559 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:09:44,559 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:09:44,559 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-28 09:09:44,559 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-28 09:09:44,560 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-12-28 09:09:44,560 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-12-28 09:09:44,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-12-28 09:09:44,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.12 09:09:44 BoogieIcfgContainer [2021-12-28 09:09:44,564 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-28 09:09:44,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-28 09:09:44,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-28 09:09:44,564 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-28 09:09:44,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 09:09:42" (3/4) ... [2021-12-28 09:09:44,566 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-28 09:09:44,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-28 09:09:44,567 INFO L158 Benchmark]: Toolchain (without parser) took 2480.62ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 52.2MB in the beginning and 58.1MB in the end (delta: -5.9MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-12-28 09:09:44,567 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 71.3MB. Free memory was 52.1MB in the beginning and 52.0MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:44,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.67ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 49.4MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-28 09:09:44,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.80ms. Allocated memory is still 71.3MB. Free memory was 49.4MB in the beginning and 47.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:09:44,568 INFO L158 Benchmark]: Boogie Preprocessor took 48.64ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 46.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-28 09:09:44,568 INFO L158 Benchmark]: RCFGBuilder took 240.30ms. Allocated memory is still 71.3MB. Free memory was 46.2MB in the beginning and 37.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-28 09:09:44,569 INFO L158 Benchmark]: BuchiAutomizer took 1840.93ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 36.7MB in the beginning and 58.1MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:44,569 INFO L158 Benchmark]: Witness Printer took 2.18ms. Allocated memory is still 86.0MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-28 09:09:44,570 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 71.3MB. Free memory was 52.1MB in the beginning and 52.0MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.67ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 49.4MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.80ms. Allocated memory is still 71.3MB. Free memory was 49.4MB in the beginning and 47.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.64ms. Allocated memory is still 71.3MB. Free memory was 47.6MB in the beginning and 46.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 240.30ms. Allocated memory is still 71.3MB. Free memory was 46.2MB in the beginning and 37.0MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1840.93ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 36.7MB in the beginning and 58.1MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.18ms. Allocated memory is still 86.0MB. Free memory is still 58.1MB. 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 unknown-#length-unknown[__builtin_alloca (length1 * sizeof(char))] + -1 * p and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 6 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital113 mio100 ax115 hnf100 lsp81 ukn95 mio100 lsp46 div100 bol100 ite100 ukn100 eq189 hnf88 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 51ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-12-28 09:09:44,600 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