./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/Ex02_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f 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-restricted-15/Ex02_false-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 415986e62fd4d8c762d30906d2737401bd104fcd ................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-0ed9222-m [2019-01-14 02:22:08,339 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:22:08,341 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:22:08,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:22:08,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:22:08,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:22:08,355 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:22:08,358 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:22:08,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:22:08,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:22:08,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:22:08,361 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:22:08,362 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:22:08,363 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:22:08,364 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:22:08,365 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:22:08,366 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:22:08,368 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:22:08,370 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:22:08,372 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:22:08,373 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:22:08,375 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:22:08,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:22:08,378 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:22:08,378 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:22:08,379 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:22:08,380 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:22:08,381 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:22:08,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:22:08,383 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:22:08,383 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:22:08,384 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:22:08,384 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:22:08,385 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:22:08,386 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:22:08,387 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:22:08,387 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:22:08,414 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:22:08,414 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:22:08,418 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:22:08,418 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:22:08,418 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:22:08,419 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:22:08,419 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:22:08,419 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:22:08,419 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:22:08,419 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:22:08,419 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:22:08,420 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:22:08,422 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:22:08,422 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:22:08,422 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:22:08,422 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:22:08,423 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:22:08,423 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:22:08,423 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:22:08,423 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:22:08,423 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:22:08,424 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:22:08,424 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:22:08,424 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:22:08,424 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:22:08,424 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:22:08,425 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:22:08,429 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:22:08,430 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:22:08,430 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 -> 415986e62fd4d8c762d30906d2737401bd104fcd [2019-01-14 02:22:08,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:22:08,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:22:08,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:22:08,522 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:22:08,523 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:22:08,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/Ex02_false-termination_true-no-overflow.c [2019-01-14 02:22:08,600 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59b51b40/1600f4a5b510436eb81f410471d47902/FLAG21d827728 [2019-01-14 02:22:09,099 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:22:09,100 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/Ex02_false-termination_true-no-overflow.c [2019-01-14 02:22:09,108 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59b51b40/1600f4a5b510436eb81f410471d47902/FLAG21d827728 [2019-01-14 02:22:09,433 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a59b51b40/1600f4a5b510436eb81f410471d47902 [2019-01-14 02:22:09,436 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:22:09,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:22:09,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:22:09,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:22:09,442 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:22:09,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74bc7883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09, skipping insertion in model container [2019-01-14 02:22:09,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:22:09,470 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:22:09,643 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:22:09,648 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:22:09,664 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:22:09,679 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:22:09,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09 WrapperNode [2019-01-14 02:22:09,680 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:22:09,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:22:09,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:22:09,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:22:09,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,697 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:22:09,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:22:09,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:22:09,718 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:22:09,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (1/1) ... [2019-01-14 02:22:09,741 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:22:09,742 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:22:09,742 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:22:09,742 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:22:09,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (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 [2019-01-14 02:22:09,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:22:09,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:22:10,014 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:22:10,015 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 02:22:10,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:22:10 BoogieIcfgContainer [2019-01-14 02:22:10,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:22:10,017 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:22:10,017 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:22:10,020 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:22:10,021 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:22:10,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:22:09" (1/3) ... [2019-01-14 02:22:10,022 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@535f8a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:22:10, skipping insertion in model container [2019-01-14 02:22:10,023 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:22:10,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:22:09" (2/3) ... [2019-01-14 02:22:10,023 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@535f8a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:22:10, skipping insertion in model container [2019-01-14 02:22:10,023 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:22:10,024 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:22:10" (3/3) ... [2019-01-14 02:22:10,025 INFO L375 chiAutomizerObserver]: Analyzing ICFG Ex02_false-termination_true-no-overflow.c [2019-01-14 02:22:10,078 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:22:10,078 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:22:10,079 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:22:10,079 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:22:10,079 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:22:10,079 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:22:10,079 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:22:10,079 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:22:10,079 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:22:10,094 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-14 02:22:10,114 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:22:10,115 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:22:10,115 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:22:10,120 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:22:10,120 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:22:10,120 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:22:10,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-14 02:22:10,121 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:22:10,121 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:22:10,121 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:22:10,122 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:22:10,122 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:22:10,129 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2019-01-14 02:22:10,130 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 > 0); 4#L10true assume 5 != main_~i~0;main_~i~0 := main_~i~0 - 1; 8#L10-2true [2019-01-14 02:22:10,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:10,136 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-14 02:22:10,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:10,138 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:10,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:10,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:10,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:10,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-01-14 02:22:10,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:10,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:10,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:10,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:10,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:10,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:10,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:10,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:10,246 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-01-14 02:22:10,246 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:10,246 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:10,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:10,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:10,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:10,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:10,373 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-01-14 02:22:10,455 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:22:10,456 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:22:10,457 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:22:10,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:22:10,457 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 02:22:10,458 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:22:10,458 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:22:10,458 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:22:10,458 INFO L131 ssoRankerPreferences]: Filename of dumped script: Ex02_false-termination_true-no-overflow.c_Iteration1_Loop [2019-01-14 02:22:10,458 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:22:10,458 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:22:10,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:22:10,532 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:22:10,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:22:10,691 WARN L181 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-01-14 02:22:11,129 WARN L181 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 16 [2019-01-14 02:22:11,139 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:22:11,139 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:22:11,150 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:22:11,151 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:22:11,205 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:22:11,206 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 02:22:11,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:22:11,217 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:22:11,268 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:22:11,268 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 02:22:11,280 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:22:11,280 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:22:11,318 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 02:22:11,318 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:22:11,352 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 02:22:11,354 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:22:11,354 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:22:11,355 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:22:11,355 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:22:11,355 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:22:11,355 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:22:11,355 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:22:11,355 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:22:11,355 INFO L131 ssoRankerPreferences]: Filename of dumped script: Ex02_false-termination_true-no-overflow.c_Iteration1_Loop [2019-01-14 02:22:11,356 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:22:11,356 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:22:11,358 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:22:11,376 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:22:11,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:22:11,579 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:22:11,585 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:22:11,587 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 [2019-01-14 02:22:11,588 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:22:11,589 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:22:11,589 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:22:11,591 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:22:11,599 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:22:11,599 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:22:11,609 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:22:11,609 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 [2019-01-14 02:22:11,610 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:22:11,610 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:22:11,611 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:22:11,611 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:22:11,614 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:22:11,615 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:22:11,628 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:22:11,629 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 [2019-01-14 02:22:11,630 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:22:11,630 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:22:11,630 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:22:11,630 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2019-01-14 02:22:11,631 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:22:11,632 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2019-01-14 02:22:11,632 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:22:11,647 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:22:11,654 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 02:22:11,654 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 02:22:11,657 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:22:11,657 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 02:22:11,657 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:22:11,658 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-01-14 02:22:11,660 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 02:22:11,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:22:11,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:22:11,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:22:11,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:22:11,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:22:11,908 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 [2019-01-14 02:22:11,910 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-01-14 02:22:11,972 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2019-01-14 02:22:11,973 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 [2019-01-14 02:22:11,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 02:22:11,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-01-14 02:22:11,977 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-14 02:22:11,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:22:11,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2019-01-14 02:22:11,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:22:11,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2019-01-14 02:22:11,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:22:11,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2019-01-14 02:22:11,983 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:22:11,987 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2019-01-14 02:22:11,988 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-01-14 02:22:11,989 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-14 02:22:11,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-01-14 02:22:11,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-14 02:22:11,990 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-01-14 02:22:12,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-01-14 02:22:12,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-01-14 02:22:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-14 02:22:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-01-14 02:22:12,014 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-14 02:22:12,014 INFO L609 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-14 02:22:12,014 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:22:12,015 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-01-14 02:22:12,015 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:22:12,015 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:22:12,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:22:12,016 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:22:12,016 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:22:12,017 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L10-2 assume !!(main_~i~0 > 0); 63#L10 [2019-01-14 02:22:12,017 INFO L796 eck$LassoCheckResult]: Loop: 63#L10 assume !(5 != main_~i~0); 64#L10-2 assume !!(main_~i~0 > 0); 63#L10 [2019-01-14 02:22:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:12,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-14 02:22:12,018 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:12,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:12,019 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:12,019 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:12,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:12,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:12,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-01-14 02:22:12,024 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:12,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:12,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:12,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:12,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:12,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:12,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:12,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:22:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-01-14 02:22:12,031 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:22:12,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:22:12,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:12,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:22:12,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:22:12,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:22:12,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:22:12 BoogieIcfgContainer [2019-01-14 02:22:12,107 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:22:12,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:22:12,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:22:12,109 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:22:12,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:22:10" (3/4) ... [2019-01-14 02:22:12,114 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 02:22:12,152 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 02:22:12,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:22:12,153 INFO L168 Benchmark]: Toolchain (without parser) took 2716.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -82.7 MB). Peak memory consumption was 55.2 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:12,154 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:12,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.71 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:12,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:12,156 INFO L168 Benchmark]: Boogie Preprocessor took 23.56 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:12,157 INFO L168 Benchmark]: RCFGBuilder took 274.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:12,158 INFO L168 Benchmark]: BuchiAutomizer took 2090.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:22:12,159 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:22:12,163 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 241.71 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.24 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.56 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 274.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2090.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 93.7 MB). Peak memory consumption was 93.7 MB. Max. memory is 11.5 GB. * Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax185 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d13c9e5=0, \result=0, i=5} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 0 Loop: [L10] COND FALSE !(i != 5) [L9] COND TRUE i > 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...