./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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-memory-alloca/Urban-2013WST-Fig1-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 ccb5cb9edc315122662555ec62bb7adf5b85f05c ..................................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:18:22,552 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:18:22,554 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:18:22,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:18:22,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:18:22,575 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:18:22,576 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:18:22,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:18:22,583 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:18:22,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:18:22,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:18:22,589 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:18:22,590 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:18:22,591 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:18:22,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:18:22,593 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:18:22,596 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:18:22,598 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:18:22,608 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:18:22,616 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:18:22,617 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:18:22,619 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:18:22,624 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:18:22,626 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:18:22,626 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:18:22,627 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:18:22,629 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:18:22,632 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:18:22,633 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:18:22,634 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:18:22,634 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:18:22,637 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:18:22,637 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:18:22,637 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:18:22,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:18:22,639 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:18:22,640 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:18:22,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:18:22,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:18:22,677 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:18:22,677 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:18:22,677 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:18:22,677 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:18:22,680 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:18:22,680 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:18:22,680 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:18:22,680 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:18:22,680 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:18:22,680 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:18:22,682 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:18:22,682 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:18:22,682 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:18:22,682 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:18:22,683 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:18:22,683 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:18:22,683 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:18:22,683 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:18:22,683 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:18:22,683 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:18:22,686 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:18:22,686 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:18:22,686 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:18:22,686 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:18:22,686 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:18:22,686 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:18:22,688 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:18:22,689 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 -> ccb5cb9edc315122662555ec62bb7adf5b85f05c [2018-11-28 23:18:22,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:18:22,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:18:22,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:18:22,757 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:18:22,757 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:18:22,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i [2018-11-28 23:18:22,815 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc76d1f6/e1ff94bab9b744bcb3d0ec47ec2d6ad0/FLAG1460ab921 [2018-11-28 23:18:23,375 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:18:23,376 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca_false-termination.c.i [2018-11-28 23:18:23,389 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc76d1f6/e1ff94bab9b744bcb3d0ec47ec2d6ad0/FLAG1460ab921 [2018-11-28 23:18:23,639 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cdc76d1f6/e1ff94bab9b744bcb3d0ec47ec2d6ad0 [2018-11-28 23:18:23,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:18:23,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:18:23,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:18:23,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:18:23,648 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:18:23,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:18:23" (1/1) ... [2018-11-28 23:18:23,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9ec91e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:23, skipping insertion in model container [2018-11-28 23:18:23,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:18:23" (1/1) ... [2018-11-28 23:18:23,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:18:23,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:18:24,121 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:18:24,136 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:18:24,265 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:18:24,333 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:18:24,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24 WrapperNode [2018-11-28 23:18:24,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:18:24,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:18:24,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:18:24,335 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:18:24,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:18:24,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:18:24,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:18:24,392 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:18:24,404 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (1/1) ... [2018-11-28 23:18:24,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:18:24,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:18:24,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:18:24,439 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:18:24,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (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 [2018-11-28 23:18:24,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 23:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 23:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 23:18:24,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:18:24,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:18:24,834 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:18:24,834 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:18:24,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:18:24 BoogieIcfgContainer [2018-11-28 23:18:24,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:18:24,836 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:18:24,836 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:18:24,840 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:18:24,841 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:18:24,841 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:18:23" (1/3) ... [2018-11-28 23:18:24,842 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d0fada7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:18:24, skipping insertion in model container [2018-11-28 23:18:24,843 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:18:24,843 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:18:24" (2/3) ... [2018-11-28 23:18:24,844 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d0fada7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:18:24, skipping insertion in model container [2018-11-28 23:18:24,844 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:18:24,844 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:18:24" (3/3) ... [2018-11-28 23:18:24,847 INFO L375 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca_false-termination.c.i [2018-11-28 23:18:24,906 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:18:24,906 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:18:24,906 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:18:24,907 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:18:24,909 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:18:24,909 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:18:24,909 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:18:24,909 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:18:24,910 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:18:24,925 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-28 23:18:24,951 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:18:24,952 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:18:24,952 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:18:24,960 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:18:24,960 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:18:24,960 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:18:24,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-28 23:18:24,962 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:18:24,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:18:24,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:18:24,963 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:18:24,963 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:18:24,972 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~malloc2.base, main_#t~malloc2.offset, main_#t~mem4, main_#t~mem5, main_#t~mem3, main_~x~0.base, main_~x~0.offset;call main_#t~malloc2.base, main_#t~malloc2.offset := #Ultimate.alloc(4);main_~x~0.base, main_~x~0.offset := main_#t~malloc2.base, main_#t~malloc2.offset; 5#L549-2true [2018-11-28 23:18:24,973 INFO L796 eck$LassoCheckResult]: Loop: 5#L549-2true call main_#t~mem3 := read~int(main_~x~0.base, main_~x~0.offset, 4); 6#L548-1true assume !!(main_#t~mem3 <= 10);havoc main_#t~mem3;call main_#t~mem4 := read~int(main_~x~0.base, main_~x~0.offset, 4); 11#L549true assume !(main_#t~mem4 > 6);havoc main_#t~mem4; 5#L549-2true [2018-11-28 23:18:24,979 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:18:24,979 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-28 23:18:24,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:18:24,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:18:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:18:25,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:18:25,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:18:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:18:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:18:25,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:18:25,097 INFO L82 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2018-11-28 23:18:25,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:18:25,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:18:25,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:18:25,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:18:25,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:18:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:18:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:18:25,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:18:25,124 INFO L82 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2018-11-28 23:18:25,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:18:25,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:18:25,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:18:25,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:18:25,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:18:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:18:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:18:25,281 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-11-28 23:18:25,430 WARN L180 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-11-28 23:18:25,654 WARN L180 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-11-28 23:18:25,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:18:25 BoogieIcfgContainer [2018-11-28 23:18:25,699 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:18:25,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:18:25,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:18:25,701 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:18:25,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:18:24" (3/4) ... [2018-11-28 23:18:25,705 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:18:25,755 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:18:25,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:18:25,756 INFO L168 Benchmark]: Toolchain (without parser) took 2113.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -124.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:18:25,760 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-28 23:18:25,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:18:25,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.44 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. [2018-11-28 23:18:25,765 INFO L168 Benchmark]: Boogie Preprocessor took 46.02 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. [2018-11-28 23:18:25,765 INFO L168 Benchmark]: RCFGBuilder took 396.88 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:18:25,766 INFO L168 Benchmark]: BuchiAutomizer took 863.65 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:18:25,769 INFO L168 Benchmark]: Witness Printer took 54.93 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:18:25,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 689.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -175.7 MB). Peak memory consumption was 29.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.44 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. * Boogie Preprocessor took 46.02 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 396.88 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: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 863.65 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: 26.5 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Witness Printer took 54.93 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: 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: 548]: 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.CASTIdExpression@261b3aa8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dbf5f0a=3, NULL=0, NULL=0, \result=0, x=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dbf5f0a=0, x=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@506d3ea9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@70bd4833=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 548]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L547] int* x = __builtin_alloca (sizeof(int)); Loop: [L548] EXPR \read(*x) [L548] COND TRUE *x <= 10 [L549] EXPR \read(*x) [L549] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...