./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-15/array14_alloca_false-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: 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 /storage/repos/svcomp/c/termination-15/array14_alloca_false-termination.c.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 519b4f74907cdda12f126cdccb2c6422dda5240e ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-2e94e6a [2019-01-01 22:05:16,936 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 22:05:16,938 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 22:05:16,959 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 22:05:16,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 22:05:16,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 22:05:16,962 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 22:05:16,964 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 22:05:16,965 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 22:05:16,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 22:05:16,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 22:05:16,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 22:05:16,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 22:05:16,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 22:05:16,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 22:05:16,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 22:05:16,972 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 22:05:16,974 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 22:05:16,976 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 22:05:16,978 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 22:05:16,979 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 22:05:16,980 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 22:05:16,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 22:05:16,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 22:05:16,984 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 22:05:16,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 22:05:16,986 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 22:05:16,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 22:05:16,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 22:05:16,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 22:05:16,989 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 22:05:16,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 22:05:16,990 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 22:05:16,990 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 22:05:16,991 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 22:05:16,992 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 22:05:16,992 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 22:05:17,018 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 22:05:17,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 22:05:17,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 22:05:17,023 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 22:05:17,024 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 22:05:17,024 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 22:05:17,024 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 22:05:17,024 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 22:05:17,024 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 22:05:17,026 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 22:05:17,026 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 22:05:17,026 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 22:05:17,026 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 22:05:17,026 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 22:05:17,027 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 22:05:17,027 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 22:05:17,027 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 22:05:17,027 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 22:05:17,027 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 22:05:17,027 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 22:05:17,029 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 22:05:17,029 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 22:05:17,029 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 22:05:17,029 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 22:05:17,029 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 22:05:17,030 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 22:05:17,030 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 22:05:17,030 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 22:05:17,032 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 22:05:17,032 INFO L133 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 -> 519b4f74907cdda12f126cdccb2c6422dda5240e [2019-01-01 22:05:17,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 22:05:17,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 22:05:17,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 22:05:17,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 22:05:17,108 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 22:05:17,109 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-15/array14_alloca_false-termination.c.i [2019-01-01 22:05:17,177 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf593aef/0976bd0b9b684e0985805528a44ce1d7/FLAG32b107db8 [2019-01-01 22:05:17,812 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 22:05:17,812 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-15/array14_alloca_false-termination.c.i [2019-01-01 22:05:17,823 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf593aef/0976bd0b9b684e0985805528a44ce1d7/FLAG32b107db8 [2019-01-01 22:05:18,023 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cf593aef/0976bd0b9b684e0985805528a44ce1d7 [2019-01-01 22:05:18,027 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 22:05:18,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 22:05:18,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 22:05:18,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 22:05:18,033 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 22:05:18,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e54013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18, skipping insertion in model container [2019-01-01 22:05:18,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 22:05:18,088 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 22:05:18,532 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:05:18,549 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 22:05:18,695 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:05:18,790 INFO L195 MainTranslator]: Completed translation [2019-01-01 22:05:18,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18 WrapperNode [2019-01-01 22:05:18,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 22:05:18,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 22:05:18,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 22:05:18,792 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 22:05:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 22:05:18,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 22:05:18,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 22:05:18,850 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 22:05:18,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (1/1) ... [2019-01-01 22:05:18,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 22:05:18,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 22:05:18,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 22:05:18,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 22:05:18,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (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 [2019-01-01 22:05:18,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 22:05:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 22:05:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 22:05:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 22:05:18,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 22:05:18,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 22:05:19,370 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 22:05:19,370 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 22:05:19,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:05:19 BoogieIcfgContainer [2019-01-01 22:05:19,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 22:05:19,372 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 22:05:19,372 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 22:05:19,375 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 22:05:19,376 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:05:19,376 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 10:05:18" (1/3) ... [2019-01-01 22:05:19,377 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@472b3df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:05:19, skipping insertion in model container [2019-01-01 22:05:19,378 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:05:19,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:05:18" (2/3) ... [2019-01-01 22:05:19,378 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@472b3df1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:05:19, skipping insertion in model container [2019-01-01 22:05:19,378 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:05:19,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:05:19" (3/3) ... [2019-01-01 22:05:19,381 INFO L375 chiAutomizerObserver]: Analyzing ICFG array14_alloca_false-termination.c.i [2019-01-01 22:05:19,442 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 22:05:19,443 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 22:05:19,443 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 22:05:19,443 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 22:05:19,443 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 22:05:19,443 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 22:05:19,443 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 22:05:19,444 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 22:05:19,444 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 22:05:19,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-01-01 22:05:19,483 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-01-01 22:05:19,483 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:19,483 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:19,490 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-01 22:05:19,490 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 22:05:19,490 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 22:05:19,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2019-01-01 22:05:19,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-01-01 22:05:19,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:19,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:19,493 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-01 22:05:19,493 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 22:05:19,502 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 8#L-1true havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 16#L367true assume !(main_~length~0 < 1); 5#L367-2true call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 12#L369true assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 17#L370-3true [2019-01-01 22:05:19,503 INFO L796 eck$LassoCheckResult]: Loop: 17#L370-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 9#L372true assume main_#t~mem209 > 0;havoc main_#t~mem209;call write~int(0, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 14#L370-2true main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 17#L370-3true [2019-01-01 22:05:19,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:19,509 INFO L82 PathProgramCache]: Analyzing trace with hash 28695753, now seen corresponding path program 1 times [2019-01-01 22:05:19,512 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:19,512 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:19,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:19,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:19,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:19,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:19,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:19,655 INFO L82 PathProgramCache]: Analyzing trace with hash 51737, now seen corresponding path program 1 times [2019-01-01 22:05:19,655 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:19,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:19,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:19,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:19,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:19,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:19,682 INFO L82 PathProgramCache]: Analyzing trace with hash 176707665, now seen corresponding path program 1 times [2019-01-01 22:05:19,682 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:19,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:19,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:19,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:19,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:19,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:19,865 WARN L181 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2019-01-01 22:05:20,293 WARN L181 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-01-01 22:05:20,355 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:05:20,357 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:05:20,357 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:05:20,357 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:05:20,357 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:05:20,357 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:05:20,358 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:05:20,358 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:05:20,358 INFO L131 ssoRankerPreferences]: Filename of dumped script: array14_alloca_false-termination.c.i_Iteration1_Lasso [2019-01-01 22:05:20,358 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:05:20,358 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:05:20,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,418 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,427 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,432 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,466 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,472 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,696 WARN L181 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2019-01-01 22:05:20,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:20,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:21,007 WARN L181 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-01-01 22:05:21,178 WARN L181 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2019-01-01 22:05:21,473 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:05:21,478 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:05:21,481 INFO L122 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 [2019-01-01 22:05:21,483 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,483 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,484 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,484 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,484 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,487 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,487 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,490 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,491 INFO L122 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 [2019-01-01 22:05:21,492 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,492 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,492 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,493 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,493 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,493 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,494 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,495 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,495 INFO L122 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 [2019-01-01 22:05:21,496 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,496 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,496 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,496 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,496 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,497 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,497 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,498 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,499 INFO L122 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 [2019-01-01 22:05:21,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,500 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,500 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,500 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,500 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,501 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,501 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,502 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,503 INFO L122 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 [2019-01-01 22:05:21,503 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,504 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,504 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,504 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,507 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:21,507 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:21,513 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,514 INFO L122 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 [2019-01-01 22:05:21,514 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,515 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,515 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,515 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,515 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,516 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,516 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,517 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,518 INFO L122 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 [2019-01-01 22:05:21,518 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,518 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,519 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,519 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,519 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,520 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,520 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,521 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,522 INFO L122 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 [2019-01-01 22:05:21,522 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,522 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:21,523 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,523 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,523 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,524 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:21,524 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:21,525 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,525 INFO L122 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 [2019-01-01 22:05:21,526 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,526 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,526 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,527 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,529 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:21,529 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:21,534 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:21,534 INFO L122 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 [2019-01-01 22:05:21,535 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:21,535 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:21,535 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:21,539 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:21,545 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:21,546 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:21,625 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:05:21,657 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-01-01 22:05:21,658 INFO L444 ModelExtractionUtils]: 17 out of 22 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 22:05:21,660 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:05:21,663 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-01 22:05:21,664 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:05:21,664 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1, ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~i~0) = 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 - 1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-01-01 22:05:21,713 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-01-01 22:05:21,732 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2019-01-01 22:05:21,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:21,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:21,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:21,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:21,889 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 [2019-01-01 22:05:21,890 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2019-01-01 22:05:21,971 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 35 states and 50 transitions. Complement of second has 7 states. [2019-01-01 22:05:21,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-01 22:05:21,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:05:21,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 33 transitions. [2019-01-01 22:05:21,976 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2019-01-01 22:05:21,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:21,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 8 letters. Loop has 3 letters. [2019-01-01 22:05:21,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:21,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 33 transitions. Stem has 5 letters. Loop has 6 letters. [2019-01-01 22:05:21,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:21,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 50 transitions. [2019-01-01 22:05:21,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:21,988 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 12 states and 17 transitions. [2019-01-01 22:05:21,989 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2019-01-01 22:05:21,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-01-01 22:05:21,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2019-01-01 22:05:21,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 22:05:21,990 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-01-01 22:05:22,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2019-01-01 22:05:22,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-01 22:05:22,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 22:05:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2019-01-01 22:05:22,017 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-01-01 22:05:22,017 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2019-01-01 22:05:22,017 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 22:05:22,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2019-01-01 22:05:22,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:22,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:22,018 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:22,019 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:05:22,019 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:05:22,019 INFO L794 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 113#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 114#L367 assume !(main_~length~0 < 1); 121#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 122#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 123#L370-3 assume !(main_~i~0 < main_~length~0); 117#L370-4 main_~j~0 := 0; 118#L378-2 [2019-01-01 22:05:22,020 INFO L796 eck$LassoCheckResult]: Loop: 118#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 120#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 118#L378-2 [2019-01-01 22:05:22,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:22,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815510, now seen corresponding path program 1 times [2019-01-01 22:05:22,020 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:22,020 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:22,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:22,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:22,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:22,122 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 22:05:22,122 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 22:05:22,123 INFO L799 eck$LassoCheckResult]: stem already infeasible [2019-01-01 22:05:22,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:22,124 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 1 times [2019-01-01 22:05:22,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:22,124 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:22,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:22,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 22:05:22,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-01-01 22:05:22,238 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. cyclomatic complexity: 7 Second operand 4 states. [2019-01-01 22:05:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:05:22,312 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2019-01-01 22:05:22,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-01 22:05:22,314 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 19 transitions. [2019-01-01 22:05:22,315 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:22,316 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 19 transitions. [2019-01-01 22:05:22,316 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2019-01-01 22:05:22,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2019-01-01 22:05:22,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2019-01-01 22:05:22,317 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 22:05:22,317 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2019-01-01 22:05:22,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2019-01-01 22:05:22,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2019-01-01 22:05:22,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-01 22:05:22,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2019-01-01 22:05:22,319 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-01-01 22:05:22,319 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2019-01-01 22:05:22,319 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 22:05:22,319 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2019-01-01 22:05:22,320 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:22,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:22,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:22,321 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:05:22,321 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:05:22,321 INFO L794 eck$LassoCheckResult]: Stem: 152#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 146#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 147#L367 assume !(main_~length~0 < 1); 154#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 155#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 156#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 148#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 149#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 157#L370-3 assume !(main_~i~0 < main_~length~0); 150#L370-4 main_~j~0 := 0; 151#L378-2 [2019-01-01 22:05:22,322 INFO L796 eck$LassoCheckResult]: Loop: 151#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 153#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 151#L378-2 [2019-01-01 22:05:22,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:22,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1982565540, now seen corresponding path program 1 times [2019-01-01 22:05:22,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:22,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:22,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:22,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:22,360 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 2 times [2019-01-01 22:05:22,360 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:22,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:22,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:22,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:22,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1719996831, now seen corresponding path program 1 times [2019-01-01 22:05:22,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:22,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:22,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,372 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:22,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:22,522 WARN L181 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-01-01 22:05:22,823 WARN L181 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-01-01 22:05:22,931 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:05:22,931 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:05:22,931 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:05:22,931 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:05:22,931 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:05:22,931 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:05:22,932 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:05:22,932 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:05:22,932 INFO L131 ssoRankerPreferences]: Filename of dumped script: array14_alloca_false-termination.c.i_Iteration3_Lasso [2019-01-01 22:05:22,932 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:05:22,932 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:05:22,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:22,939 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:22,941 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,147 WARN L181 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-01-01 22:05:23,196 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,201 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:23,616 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:05:23,617 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:05:23,617 INFO L122 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 [2019-01-01 22:05:23,618 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:23,618 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:23,619 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:23,619 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:23,619 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:23,620 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:23,620 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:23,621 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:23,621 INFO L122 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 [2019-01-01 22:05:23,621 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:23,622 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:23,622 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:23,622 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:23,622 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:23,623 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:23,623 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:23,624 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:23,624 INFO L122 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 [2019-01-01 22:05:23,625 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:23,625 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-01 22:05:23,625 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:23,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:23,628 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-01 22:05:23,628 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:23,640 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:23,640 INFO L122 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 [2019-01-01 22:05:23,641 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:23,641 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:23,641 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:23,641 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:23,643 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:23,643 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:23,646 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:23,646 INFO L122 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 [2019-01-01 22:05:23,647 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:23,647 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:23,647 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:23,647 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:23,651 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:23,651 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:23,687 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:05:23,734 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-01-01 22:05:23,735 INFO L444 ModelExtractionUtils]: 17 out of 22 variables were initially zero. Simplification set additionally 2 variables to zero. [2019-01-01 22:05:23,735 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:05:23,736 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-01 22:05:23,738 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:05:23,738 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2019-01-01 22:05:23,810 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-01-01 22:05:23,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:23,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:23,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:24,053 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 [2019-01-01 22:05:24,053 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6 Second operand 3 states. [2019-01-01 22:05:24,072 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 16 states and 22 transitions. Complement of second has 5 states. [2019-01-01 22:05:24,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:05:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:05:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2019-01-01 22:05:24,075 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 2 letters. [2019-01-01 22:05:24,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:24,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 12 letters. Loop has 2 letters. [2019-01-01 22:05:24,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:24,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 10 letters. Loop has 4 letters. [2019-01-01 22:05:24,076 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:24,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 22 transitions. [2019-01-01 22:05:24,078 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:24,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 16 states and 22 transitions. [2019-01-01 22:05:24,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2019-01-01 22:05:24,079 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-01-01 22:05:24,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2019-01-01 22:05:24,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:05:24,079 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-01-01 22:05:24,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2019-01-01 22:05:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-01 22:05:24,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-01 22:05:24,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2019-01-01 22:05:24,083 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-01-01 22:05:24,083 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2019-01-01 22:05:24,083 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 22:05:24,083 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2019-01-01 22:05:24,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:24,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:24,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:24,087 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:05:24,087 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:05:24,088 INFO L794 eck$LassoCheckResult]: Stem: 249#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 245#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 246#L367 assume !(main_~length~0 < 1); 255#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 256#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 257#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 243#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 244#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 258#L370-3 assume !(main_~i~0 < main_~length~0); 247#L370-4 main_~j~0 := 0; 248#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 254#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 250#L378-2 [2019-01-01 22:05:24,088 INFO L796 eck$LassoCheckResult]: Loop: 250#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 251#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 250#L378-2 [2019-01-01 22:05:24,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:24,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1719996833, now seen corresponding path program 1 times [2019-01-01 22:05:24,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:24,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:24,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:24,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:24,139 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 3 times [2019-01-01 22:05:24,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:24,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:24,140 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:24,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:24,157 INFO L82 PathProgramCache]: Analyzing trace with hash -645451100, now seen corresponding path program 1 times [2019-01-01 22:05:24,157 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:24,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:24,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,160 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:24,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:24,349 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 22:05:24,349 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 22:05:24,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:24,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:24,510 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 22:05:24,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2019-01-01 22:05:24,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-01 22:05:24,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-01-01 22:05:24,557 INFO L87 Difference]: Start difference. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 10 states. [2019-01-01 22:05:24,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:05:24,820 INFO L93 Difference]: Finished difference Result 35 states and 48 transitions. [2019-01-01 22:05:24,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-01-01 22:05:24,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 48 transitions. [2019-01-01 22:05:24,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:24,824 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 21 states and 28 transitions. [2019-01-01 22:05:24,825 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2019-01-01 22:05:24,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2019-01-01 22:05:24,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2019-01-01 22:05:24,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:05:24,825 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2019-01-01 22:05:24,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2019-01-01 22:05:24,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-01-01 22:05:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-01-01 22:05:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-01-01 22:05:24,828 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-01-01 22:05:24,828 INFO L608 BuchiCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-01-01 22:05:24,828 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2019-01-01 22:05:24,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 25 transitions. [2019-01-01 22:05:24,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:24,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:24,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:24,832 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:05:24,832 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:05:24,832 INFO L794 eck$LassoCheckResult]: Stem: 364#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 360#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 361#L367 assume !(main_~length~0 < 1); 370#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 371#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 372#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 375#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 373#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 374#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 358#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 359#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 376#L370-3 assume !(main_~i~0 < main_~length~0); 362#L370-4 main_~j~0 := 0; 363#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 369#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 365#L378-2 [2019-01-01 22:05:24,833 INFO L796 eck$LassoCheckResult]: Loop: 365#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 366#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 365#L378-2 [2019-01-01 22:05:24,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:24,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1238701285, now seen corresponding path program 2 times [2019-01-01 22:05:24,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:24,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:24,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:24,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:24,856 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 4 times [2019-01-01 22:05:24,856 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:24,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:24,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,857 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:24,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:24,863 INFO L82 PathProgramCache]: Analyzing trace with hash -685992546, now seen corresponding path program 2 times [2019-01-01 22:05:24,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:24,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:24,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,864 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:24,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:25,119 WARN L181 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-01-01 22:05:25,694 WARN L181 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 87 [2019-01-01 22:05:25,752 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:05:25,753 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:05:25,753 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:05:25,753 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:05:25,753 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:05:25,753 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:05:25,754 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:05:25,754 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:05:25,754 INFO L131 ssoRankerPreferences]: Filename of dumped script: array14_alloca_false-termination.c.i_Iteration5_Lasso [2019-01-01 22:05:25,754 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:05:25,754 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:05:25,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,912 WARN L181 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-01-01 22:05:25,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,951 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,954 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:25,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:05:26,264 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:05:26,264 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:05:26,265 INFO L122 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 [2019-01-01 22:05:26,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:26,265 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:26,266 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:26,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:26,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:26,267 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:26,267 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:26,267 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:26,268 INFO L122 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 [2019-01-01 22:05:26,268 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:26,268 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:26,268 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:26,268 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:26,269 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:26,270 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:26,271 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:26,272 INFO L122 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 [2019-01-01 22:05:26,272 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:26,272 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:05:26,273 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:26,273 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:26,273 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:26,273 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:05:26,273 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:05:26,274 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:05:26,274 INFO L122 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 [2019-01-01 22:05:26,274 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:05:26,275 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:05:26,275 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:05:26,275 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:05:26,277 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:05:26,278 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:05:26,292 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:05:26,297 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 22:05:26,297 INFO L444 ModelExtractionUtils]: 22 out of 25 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 22:05:26,298 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:05:26,298 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-01 22:05:26,299 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:05:26,299 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [] [2019-01-01 22:05:26,397 INFO L297 tatePredicateManager]: 4 out of 4 supporting invariants were superfluous and have been removed [2019-01-01 22:05:26,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:26,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:26,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:26,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:26,695 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 [2019-01-01 22:05:26,696 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9 Second operand 3 states. [2019-01-01 22:05:26,711 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 19 states and 25 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 23 states and 31 transitions. Complement of second has 5 states. [2019-01-01 22:05:26,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:05:26,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:05:26,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2019-01-01 22:05:26,713 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 2 letters. [2019-01-01 22:05:26,714 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:26,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 17 letters. Loop has 2 letters. [2019-01-01 22:05:26,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:26,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 15 letters. Loop has 4 letters. [2019-01-01 22:05:26,715 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:05:26,716 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2019-01-01 22:05:26,716 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:26,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 31 transitions. [2019-01-01 22:05:26,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2019-01-01 22:05:26,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2019-01-01 22:05:26,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2019-01-01 22:05:26,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:05:26,719 INFO L705 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-01-01 22:05:26,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2019-01-01 22:05:26,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-01-01 22:05:26,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-01-01 22:05:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2019-01-01 22:05:26,722 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-01-01 22:05:26,722 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 31 transitions. [2019-01-01 22:05:26,722 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2019-01-01 22:05:26,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 31 transitions. [2019-01-01 22:05:26,724 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:05:26,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:26,724 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:26,727 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:05:26,727 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:05:26,727 INFO L794 eck$LassoCheckResult]: Stem: 494#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 488#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 489#L367 assume !(main_~length~0 < 1); 500#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 501#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 502#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 506#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 503#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 504#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 490#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 491#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 507#L370-3 assume !(main_~i~0 < main_~length~0); 492#L370-4 main_~j~0 := 0; 493#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 499#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 505#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 508#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 495#L378-2 [2019-01-01 22:05:26,727 INFO L796 eck$LassoCheckResult]: Loop: 495#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 496#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 495#L378-2 [2019-01-01 22:05:26,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:26,728 INFO L82 PathProgramCache]: Analyzing trace with hash -685992544, now seen corresponding path program 3 times [2019-01-01 22:05:26,728 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:26,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:26,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:26,729 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:26,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:26,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:26,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:26,776 INFO L82 PathProgramCache]: Analyzing trace with hash 2308, now seen corresponding path program 5 times [2019-01-01 22:05:26,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:26,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:26,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:26,781 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:26,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:26,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:26,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:26,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2108837149, now seen corresponding path program 3 times [2019-01-01 22:05:26,790 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:26,790 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:26,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:26,791 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:26,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:05:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:27,068 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-01 22:05:27,068 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-01 22:05:27,080 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-01-01 22:05:27,124 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-01-01 22:05:27,124 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-01 22:05:27,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:05:27,184 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:05:27,212 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-01 22:05:27,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2019-01-01 22:05:27,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-01-01 22:05:27,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-01-01 22:05:27,268 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. cyclomatic complexity: 12 Second operand 13 states. [2019-01-01 22:05:27,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 22:05:27,411 INFO L93 Difference]: Finished difference Result 46 states and 63 transitions. [2019-01-01 22:05:27,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-01 22:05:27,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 63 transitions. [2019-01-01 22:05:27,414 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2019-01-01 22:05:27,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 44 states and 60 transitions. [2019-01-01 22:05:27,415 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2019-01-01 22:05:27,415 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2019-01-01 22:05:27,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 60 transitions. [2019-01-01 22:05:27,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:05:27,417 INFO L705 BuchiCegarLoop]: Abstraction has 44 states and 60 transitions. [2019-01-01 22:05:27,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states and 60 transitions. [2019-01-01 22:05:27,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2019-01-01 22:05:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2019-01-01 22:05:27,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2019-01-01 22:05:27,423 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-01-01 22:05:27,423 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 53 transitions. [2019-01-01 22:05:27,423 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2019-01-01 22:05:27,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 53 transitions. [2019-01-01 22:05:27,424 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2019-01-01 22:05:27,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:05:27,424 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:05:27,427 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 22:05:27,427 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2019-01-01 22:05:27,427 INFO L794 eck$LassoCheckResult]: Stem: 643#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 637#L-1 havoc main_#res;havoc main_#t~nondet205, main_#t~malloc206.base, main_#t~malloc206.offset, main_#t~nondet208, main_#t~mem209, main_#t~post207, main_#t~mem210, main_#t~post211, main_#t~post212, main_~i~0, main_~j~0, main_~length~0, main_~arr~0.base, main_~arr~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet205;havoc main_#t~nondet205; 638#L367 assume !(main_~length~0 < 1); 649#L367-2 call main_#t~malloc206.base, main_#t~malloc206.offset := #Ultimate.allocOnStack(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc206.base, main_#t~malloc206.offset; 650#L369 assume !(main_~arr~0.base == 0 && main_~arr~0.offset == 0);main_~i~0 := 0; 651#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 657#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 660#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 658#L370-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet208, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet208;call main_#t~mem209 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4); 659#L372 assume !(main_#t~mem209 > 0);havoc main_#t~mem209; 652#L370-2 main_#t~post207 := main_~i~0;main_~i~0 := 1 + main_#t~post207;havoc main_#t~post207; 653#L370-3 assume !(main_~i~0 < main_~length~0); 641#L370-4 main_~j~0 := 0; 642#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 662#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 661#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 655#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 656#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 672#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 670#L378-2 [2019-01-01 22:05:27,427 INFO L796 eck$LassoCheckResult]: Loop: 670#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 667#L378 assume main_#t~mem210 < 0;havoc main_#t~mem210;main_#t~post211 := main_~j~0;main_~j~0 := main_#t~post211 - 1;havoc main_#t~post211; 644#L378-2 assume !!(0 <= main_~j~0 && main_~j~0 < main_~length~0);call main_#t~mem210 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * main_~j~0, 4); 645#L378 assume !(main_#t~mem210 < 0);havoc main_#t~mem210;main_#t~post212 := main_~j~0;main_~j~0 := 1 + main_#t~post212;havoc main_#t~post212; 670#L378-2 [2019-01-01 22:05:27,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:27,428 INFO L82 PathProgramCache]: Analyzing trace with hash -2108839069, now seen corresponding path program 4 times [2019-01-01 22:05:27,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:27,428 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:27,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:27,429 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:27,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:27,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2219337, now seen corresponding path program 1 times [2019-01-01 22:05:27,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:27,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:27,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:27,454 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:05:27,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:27,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:27,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:05:27,465 INFO L82 PathProgramCache]: Analyzing trace with hash 50792363, now seen corresponding path program 5 times [2019-01-01 22:05:27,465 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:05:27,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:05:27,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:27,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:05:27,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:05:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:05:27,682 WARN L181 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-01-01 22:05:28,044 WARN L181 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-01-01 22:05:28,148 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 10:05:28 BoogieIcfgContainer [2019-01-01 22:05:28,148 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 22:05:28,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 22:05:28,149 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 22:05:28,149 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 22:05:28,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:05:19" (3/4) ... [2019-01-01 22:05:28,155 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 22:05:28,221 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 22:05:28,221 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 22:05:28,222 INFO L168 Benchmark]: Toolchain (without parser) took 10194.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 219.7 MB). Free memory was 951.4 MB in the beginning and 871.0 MB in the end (delta: 80.4 MB). Peak memory consumption was 300.1 MB. Max. memory is 11.5 GB. [2019-01-01 22:05:28,228 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:05:28,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 761.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2019-01-01 22:05:28,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-01 22:05:28,230 INFO L168 Benchmark]: Boogie Preprocessor took 41.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:05:28,235 INFO L168 Benchmark]: RCFGBuilder took 479.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-01-01 22:05:28,236 INFO L168 Benchmark]: BuchiAutomizer took 8776.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 871.0 MB in the end (delta: 225.2 MB). Peak memory consumption was 298.1 MB. Max. memory is 11.5 GB. [2019-01-01 22:05:28,237 INFO L168 Benchmark]: Witness Printer took 72.93 ms. Allocated memory is still 1.2 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:05:28,251 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 761.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -176.8 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.96 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 479.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8776.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 871.0 MB in the end (delta: 225.2 MB). Peak memory consumption was 298.1 MB. Max. memory is 11.5 GB. * Witness Printer took 72.93 ms. Allocated memory is still 1.2 GB. Free memory is still 871.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (3 trivial, 3 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function unknown-#length-unknown[arr] + -1 * arr + -4 * i and consists of 5 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. One deterministic module has affine ranking function 2 * j + 1 and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 13 locations. The remainder module has 39 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.7s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 7.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 39 states and ocurred in iteration 6. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 66 SDtfs, 105 SDslu, 81 SDs, 0 SdLazy, 191 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU1 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital124 mio100 ax100 hnf98 lsp93 ukn82 mio100 lsp61 div100 bol100 ite100 ukn100 eq163 hnf88 smp95 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 3 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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: 377]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, \result=0, NULL=0, arr=-1, arr=0, i=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39bed22b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3420ecce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@445502a6=0, length=2, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@2702feff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@445502a6=-1, j=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5d5eb43e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@6b16ffb8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5b530f8a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@54a89d28=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 377]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); [L369] COND FALSE !(!arr) [L370] i=0 [L370] COND TRUE i 0) [L370] i++ [L370] COND TRUE i 0) [L370] i++ [L370] COND FALSE !(i