./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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-linkedlists/cll_by_lseg_traverse-alloca.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 65da722a2ea59f5974c3b0082ca57aa0ffbedb9a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:02:34,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:02:34,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:02:34,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:02:34,448 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:02:34,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:02:34,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:02:34,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:02:34,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:02:34,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:02:34,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:02:34,476 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:02:34,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:02:34,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:02:34,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:02:34,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:02:34,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:02:34,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:02:34,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:02:34,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:02:34,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:02:34,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:02:34,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:02:34,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:02:34,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:02:34,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:02:34,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:02:34,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:02:34,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:02:34,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:02:34,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:02:34,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:02:34,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:02:34,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:02:34,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:02:34,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:02:34,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:02:34,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:02:34,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:02:34,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:02:34,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:02:34,521 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 03:02:34,556 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:02:34,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:02:34,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:02:34,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:02:34,558 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:02:34,558 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:02:34,559 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:02:34,559 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:02:34,559 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:02:34,559 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:02:34,560 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:02:34,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:02:34,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:02:34,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:02:34,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:02:34,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:02:34,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:02:34,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:02:34,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:02:34,562 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:02:34,562 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:02:34,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:02:34,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:02:34,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:02:34,564 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:02:34,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:02:34,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:02:34,564 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:02:34,565 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:02:34,566 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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 -> 65da722a2ea59f5974c3b0082ca57aa0ffbedb9a [2019-11-28 03:02:34,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:02:34,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:02:34,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:02:34,937 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:02:34,938 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:02:34,938 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i [2019-11-28 03:02:35,016 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f535963b1/12f4d1589b974805becef582c41f1ce5/FLAGd7a8abb5f [2019-11-28 03:02:35,625 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:02:35,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-linkedlists/cll_by_lseg_traverse-alloca.i [2019-11-28 03:02:35,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f535963b1/12f4d1589b974805becef582c41f1ce5/FLAGd7a8abb5f [2019-11-28 03:02:35,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f535963b1/12f4d1589b974805becef582c41f1ce5 [2019-11-28 03:02:35,891 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:02:35,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:02:35,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:02:35,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:02:35,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:02:35,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:35" (1/1) ... [2019-11-28 03:02:35,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f74f45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:35, skipping insertion in model container [2019-11-28 03:02:35,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:02:35" (1/1) ... [2019-11-28 03:02:35,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:02:35,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:02:36,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:02:36,387 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:02:36,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:02:36,491 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:02:36,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36 WrapperNode [2019-11-28 03:02:36,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:02:36,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:02:36,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:02:36,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:02:36,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,516 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,535 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:02:36,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:02:36,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:02:36,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:02:36,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,551 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,574 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... [2019-11-28 03:02:36,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:02:36,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:02:36,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:02:36,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:02:36,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 03:02:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-28 03:02:36,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 03:02:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-28 03:02:36,642 INFO L130 BoogieDeclarations]: Found specification of procedure new_lseg [2019-11-28 03:02:36,642 INFO L138 BoogieDeclarations]: Found implementation of procedure new_lseg [2019-11-28 03:02:36,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:02:36,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:02:36,969 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:02:36,969 INFO L297 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-28 03:02:36,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:36 BoogieIcfgContainer [2019-11-28 03:02:36,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:02:36,971 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:02:36,971 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:02:36,974 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:02:36,975 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:02:36,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:02:35" (1/3) ... [2019-11-28 03:02:36,976 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17bbee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:02:36, skipping insertion in model container [2019-11-28 03:02:36,976 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:02:36,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:02:36" (2/3) ... [2019-11-28 03:02:36,977 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17bbee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:02:36, skipping insertion in model container [2019-11-28 03:02:36,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:02:36,977 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:36" (3/3) ... [2019-11-28 03:02:36,979 INFO L371 chiAutomizerObserver]: Analyzing ICFG cll_by_lseg_traverse-alloca.i [2019-11-28 03:02:37,021 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:02:37,021 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:02:37,021 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:02:37,021 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:02:37,027 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:02:37,027 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:02:37,027 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:02:37,028 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:02:37,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-28 03:02:37,063 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 03:02:37,064 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:02:37,064 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:02:37,071 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 03:02:37,071 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:02:37,071 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:02:37,071 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2019-11-28 03:02:37,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2019-11-28 03:02:37,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:02:37,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:02:37,074 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 03:02:37,074 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 03:02:37,080 INFO L794 eck$LassoCheckResult]: Stem: 8#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 7#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~n~0, main_~x~2.base, main_~x~2.offset;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 12#L572true assume !(main_~n~0 < 1);new_cll_#in~n := main_~n~0;havoc new_cll_#res.base, new_cll_#res.offset;havoc new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset, new_cll_#t~ret5.base, new_cll_#t~ret5.offset, new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset;new_cll_~n := new_cll_#in~n;call new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset := #Ultimate.allocOnHeap(12);new_cll_~x~1.base, new_cll_~x~1.offset := new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset;call write~int(new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset, 4); 18#L559true call new_cll_#t~ret5.base, new_cll_#t~ret5.offset := new_lseg(new_cll_~x~1.base, new_cll_~x~1.offset, new_cll_~n - 1);< 14#new_lsegENTRYtrue [2019-11-28 03:02:37,080 INFO L796 eck$LassoCheckResult]: Loop: 14#new_lsegENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;~n := #in~n; 10#L548true assume !(0 == ~n);call #t~malloc2.base, #t~malloc2.offset := #Ultimate.allocOnHeap(12);~x~0.base, ~x~0.offset := #t~malloc2.base, #t~malloc2.offset;call write~int(~n, ~x~0.base, ~x~0.offset, 4); 15#L552true call #t~ret3.base, #t~ret3.offset := new_lseg(~p.base, ~p.offset, ~n - 1);< 14#new_lsegENTRYtrue [2019-11-28 03:02:37,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:37,086 INFO L82 PathProgramCache]: Analyzing trace with hash 925696, now seen corresponding path program 1 times [2019-11-28 03:02:37,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:37,093 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412360167] [2019-11-28 03:02:37,093 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:37,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:37,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:37,244 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:37,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash 57729, now seen corresponding path program 1 times [2019-11-28 03:02:37,245 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:37,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376838] [2019-11-28 03:02:37,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:37,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:37,287 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:37,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:37,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1807633698, now seen corresponding path program 1 times [2019-11-28 03:02:37,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:37,290 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737314455] [2019-11-28 03:02:37,290 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:37,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:37,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:37,374 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:37,632 WARN L192 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-11-28 03:02:37,888 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-11-28 03:02:38,238 WARN L192 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-11-28 03:02:38,345 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2019-11-28 03:02:38,499 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-28 03:02:38,577 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 03:02:38,578 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 03:02:38,578 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 03:02:38,578 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 03:02:38,578 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 03:02:38,579 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:38,579 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 03:02:38,579 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 03:02:38,579 INFO L133 ssoRankerPreferences]: Filename of dumped script: cll_by_lseg_traverse-alloca.i_Iteration1_Lasso [2019-11-28 03:02:38,580 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 03:02:38,580 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 03:02:38,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,627 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,636 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,644 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,647 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,651 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,788 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,797 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,810 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,812 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,823 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,843 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,845 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,854 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,856 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:38,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 03:02:39,290 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 03:02:39,300 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:39,326 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,329 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,330 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,331 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,331 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,337 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,337 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,345 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:39,367 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,370 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,370 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,372 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,372 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,373 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,373 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:39,381 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:39,393 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,395 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,395 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,395 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,395 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,396 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,396 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,399 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:39,412 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,414 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,414 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,415 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,416 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,417 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,420 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,442 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,444 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,444 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,444 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,444 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,445 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,445 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:39,447 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,498 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,500 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,500 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,500 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,501 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,501 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,502 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,502 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:39,505 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:39,521 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,523 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,523 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,527 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,541 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,543 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,543 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,543 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,543 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,544 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,545 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,545 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:39,547 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,565 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,568 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,568 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 03:02:39,568 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,569 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,569 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,569 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 03:02:39,570 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 03:02:39,571 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,582 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,584 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,593 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:39,593 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:02:39,601 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,616 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,618 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,618 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,618 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,619 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,629 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:39,629 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:02:39,636 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,644 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,646 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,646 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,646 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 03:02:39,646 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,652 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 03:02:39,652 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 03:02:39,660 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,671 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,673 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,673 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2019-11-28 03:02:39,674 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:02:39,674 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,690 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2019-11-28 03:02:39,690 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:02:39,710 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,727 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 03:02:39,729 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 03:02:39,729 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 03:02:39,729 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2019-11-28 03:02:39,730 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 03:02:39,749 INFO L401 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-11-28 03:02:39,749 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-11-28 03:02:39,784 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 03:02:39,905 INFO L443 ModelExtractionUtils]: Simplification made 9 calls to the SMT solver. [2019-11-28 03:02:39,905 INFO L444 ModelExtractionUtils]: 12 out of 21 variables were initially zero. Simplification set additionally 6 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 03:02:39,917 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:02:39,923 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-11-28 03:02:39,923 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 03:02:39,924 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(new_lseg_#in~n) = 1*new_lseg_#in~n Supporting invariants [1*new_lseg_#in~n >= 0] [2019-11-28 03:02:39,945 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2019-11-28 03:02:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:02:40,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-28 03:02:40,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:02:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:02:40,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjunts are in the unsatisfiable core [2019-11-28 03:02:40,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 03:02:40,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:02:40,174 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-11-28 03:02:40,176 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 5 states. [2019-11-28 03:02:40,346 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 5 states. Result 35 states and 41 transitions. Complement of second has 13 states. [2019-11-28 03:02:40,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 03:02:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-11-28 03:02:40,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2019-11-28 03:02:40,351 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2019-11-28 03:02:40,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:02:40,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2019-11-28 03:02:40,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:02:40,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 6 letters. [2019-11-28 03:02:40,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 03:02:40,354 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 41 transitions. [2019-11-28 03:02:40,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:02:40,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 22 states and 27 transitions. [2019-11-28 03:02:40,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2019-11-28 03:02:40,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2019-11-28 03:02:40,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 27 transitions. [2019-11-28 03:02:40,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 03:02:40,369 INFO L688 BuchiCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-11-28 03:02:40,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states and 27 transitions. [2019-11-28 03:02:40,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2019-11-28 03:02:40,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2019-11-28 03:02:40,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2019-11-28 03:02:40,405 INFO L711 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-28 03:02:40,405 INFO L591 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2019-11-28 03:02:40,405 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:02:40,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 23 transitions. [2019-11-28 03:02:40,406 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 03:02:40,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:02:40,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:02:40,407 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:02:40,407 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 03:02:40,408 INFO L794 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; 130#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~ret8.base, main_#t~ret8.offset, main_~n~0, main_~x~2.base, main_~x~2.offset;main_~n~0 := main_#t~nondet7;havoc main_#t~nondet7; 131#L572 assume !(main_~n~0 < 1);new_cll_#in~n := main_~n~0;havoc new_cll_#res.base, new_cll_#res.offset;havoc new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset, new_cll_#t~ret5.base, new_cll_#t~ret5.offset, new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset;new_cll_~n := new_cll_#in~n;call new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset := #Ultimate.allocOnHeap(12);new_cll_~x~1.base, new_cll_~x~1.offset := new_cll_#t~malloc4.base, new_cll_#t~malloc4.offset;call write~int(new_cll_~n, new_cll_~x~1.base, new_cll_~x~1.offset, 4); 136#L559 call new_cll_#t~ret5.base, new_cll_#t~ret5.offset := new_lseg(new_cll_~x~1.base, new_cll_~x~1.offset, new_cll_~n - 1);< 137#new_lsegENTRY ~p.base, ~p.offset := #in~p.base, #in~p.offset;~n := #in~n; 138#L548 assume 0 == ~n;#res.base, #res.offset := ~p.base, ~p.offset; 143#new_lsegFINAL assume true; 141#new_lsegEXIT >#37#return; 127#L559-1 call write~$Pointer$(new_cll_#t~ret5.base, new_cll_#t~ret5.offset, new_cll_~x~1.base, 4 + new_cll_~x~1.offset, 8);havoc new_cll_#t~ret5.base, new_cll_#t~ret5.offset;new_cll_#res.base, new_cll_#res.offset := new_cll_~x~1.base, new_cll_~x~1.offset; 128#L560 main_#t~ret8.base, main_#t~ret8.offset := new_cll_#res.base, new_cll_#res.offset;main_~x~2.base, main_~x~2.offset := main_#t~ret8.base, main_#t~ret8.offset;havoc main_#t~ret8.base, main_#t~ret8.offset;traverse_#in~head.base, traverse_#in~head.offset := main_~x~2.base, main_~x~2.offset;havoc traverse_#t~mem6.base, traverse_#t~mem6.offset, traverse_~head.base, traverse_~head.offset, traverse_~curr~0.base, traverse_~curr~0.offset;traverse_~head.base, traverse_~head.offset := traverse_#in~head.base, traverse_#in~head.offset;traverse_~curr~0.base, traverse_~curr~0.offset := traverse_~head.base, traverse_~head.offset; 133#L565-2 [2019-11-28 03:02:40,408 INFO L796 eck$LassoCheckResult]: Loop: 133#L565-2 assume !!(traverse_~curr~0.base != 0 || traverse_~curr~0.offset != 0);call traverse_#t~mem6.base, traverse_#t~mem6.offset := read~$Pointer$(traverse_~curr~0.base, 4 + traverse_~curr~0.offset, 8);traverse_~curr~0.base, traverse_~curr~0.offset := traverse_#t~mem6.base, traverse_#t~mem6.offset;havoc traverse_#t~mem6.base, traverse_#t~mem6.offset; 133#L565-2 [2019-11-28 03:02:40,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:40,409 INFO L82 PathProgramCache]: Analyzing trace with hash 914562823, now seen corresponding path program 1 times [2019-11-28 03:02:40,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:40,409 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877172783] [2019-11-28 03:02:40,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:40,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:40,454 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:40,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:40,454 INFO L82 PathProgramCache]: Analyzing trace with hash 51, now seen corresponding path program 1 times [2019-11-28 03:02:40,455 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:40,455 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551952085] [2019-11-28 03:02:40,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:40,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:40,464 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:40,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:02:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1713323539, now seen corresponding path program 1 times [2019-11-28 03:02:40,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:02:40,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169292969] [2019-11-28 03:02:40,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:02:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:40,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:02:40,546 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:02:41,586 WARN L192 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 144 [2019-11-28 03:02:41,639 INFO L508 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 03:02:41,764 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-28 03:02:41,765 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:02:41,770 INFO L508 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-11-28 03:02:41,881 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-28 03:02:41,882 INFO L588 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-11-28 03:02:41,884 INFO L508 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-11-28 03:02:41,884 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:166, output treesize:142 [2019-11-28 03:02:41,993 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-11-28 03:02:42,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:02:42 BoogieIcfgContainer [2019-11-28 03:02:42,027 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:02:42,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:02:42,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:02:42,028 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:02:42,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:02:36" (3/4) ... [2019-11-28 03:02:42,032 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:02:42,077 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:02:42,077 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:02:42,081 INFO L168 Benchmark]: Toolchain (without parser) took 6187.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 960.4 MB in the beginning and 857.9 MB in the end (delta: 102.5 MB). Peak memory consumption was 275.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:42,081 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:02:42,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -87.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:42,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:02:42,083 INFO L168 Benchmark]: Boogie Preprocessor took 41.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:42,084 INFO L168 Benchmark]: RCFGBuilder took 393.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:42,085 INFO L168 Benchmark]: BuchiAutomizer took 5056.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 105.9 MB). Free memory was 1.0 GB in the beginning and 866.2 MB in the end (delta: 153.3 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:42,085 INFO L168 Benchmark]: Witness Printer took 49.16 ms. Allocated memory is still 1.2 GB. Free memory was 866.2 MB in the beginning and 857.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 03:02:42,089 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 592.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 66.6 MB). Free memory was 960.4 MB in the beginning and 1.0 GB in the end (delta: -87.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.04 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 393.56 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5056.34 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 105.9 MB). Free memory was 1.0 GB in the beginning and 866.2 MB in the end (delta: 153.3 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. * Witness Printer took 49.16 ms. Allocated memory is still 1.2 GB. Free memory was 866.2 MB in the beginning and 857.9 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function \old(n) and consists of 5 locations. The remainder module has 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 20 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 11 SDslu, 7 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital204 mio100 ax100 hnf100 lsp94 ukn46 mio100 lsp30 div100 bol100 ite100 ukn100 eq196 hnf92 smp100 dnf136 smp100 tf100 neg97 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 2 VariablesLoop: 4 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 565]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@110b8182=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56709322=0, curr=-1, \result=0, x=0, NULL=1, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e990d47=0, x=-1, \old(n)=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e4125e4=0, x=-1, head=0, head=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFieldReference@110b8182=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27ba6199=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e4125e4=-1, n=1, head=0, head=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27ba6199=0, NULL=0, n=1, \result=-1, curr=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56709322=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 565]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L571] int n = __VERIFIER_nondet_int(); [L572] COND FALSE !(n < 1) [L557] node_t* x = malloc(sizeof(node_t)); [L558] x->val = n [L559] CALL, EXPR new_lseg(x,n-1) [L548] COND TRUE n==0 [L549] return p; [L559] RET, EXPR new_lseg(x,n-1) [L559] x->next = new_lseg(x,n-1) [L560] return x; [L575] node_t* x = new_cll(n); [L564] node_t* curr = head; Loop: [L565] COND TRUE curr != ((void *)0) [L566] EXPR curr->next [L566] curr = curr->next End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...