./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/memsafety/test-0217_true-valid-memsafety_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 6deae1cf94a35817940360d74a8fa8af1a7547c7 ............................................................................................................................................................................................................................................................................................................................ 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 04:59:07,718 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:59:07,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:59:07,736 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:59:07,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:59:07,737 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:59:07,738 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:59:07,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:59:07,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:59:07,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:59:07,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:59:07,743 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:59:07,744 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:59:07,745 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:59:07,746 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:59:07,747 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:59:07,748 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:59:07,750 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:59:07,752 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:59:07,754 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:59:07,755 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:59:07,756 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:59:07,759 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:59:07,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:59:07,759 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:59:07,763 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:59:07,765 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:59:07,768 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:59:07,769 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:59:07,770 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:59:07,770 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:59:07,774 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:59:07,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:59:07,775 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:59:07,776 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:59:07,777 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:59:07,778 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:59:07,806 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:59:07,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:59:07,808 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:59:07,808 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:59:07,808 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:59:07,808 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:59:07,809 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:59:07,809 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:59:07,809 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:59:07,809 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:59:07,809 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:59:07,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:59:07,810 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:59:07,810 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:59:07,810 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:59:07,810 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:59:07,810 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:59:07,810 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:59:07,811 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:59:07,811 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:59:07,811 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:59:07,811 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:59:07,811 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:59:07,811 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:59:07,812 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:59:07,812 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:59:07,812 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:59:07,812 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:59:07,812 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:59:07,813 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:59:07,813 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:59:07,814 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:59:07,814 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6deae1cf94a35817940360d74a8fa8af1a7547c7 [2019-01-14 04:59:07,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:59:07,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:59:07,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:59:07,901 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:59:07,902 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:59:07,903 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i [2019-01-14 04:59:07,959 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da27a1146/c99875c636e546a7bab02ea76ea9a87f/FLAGb84b11868 [2019-01-14 04:59:08,526 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:59:08,527 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/memsafety/test-0217_true-valid-memsafety_false-termination.i [2019-01-14 04:59:08,545 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da27a1146/c99875c636e546a7bab02ea76ea9a87f/FLAGb84b11868 [2019-01-14 04:59:08,787 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da27a1146/c99875c636e546a7bab02ea76ea9a87f [2019-01-14 04:59:08,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:59:08,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:59:08,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:59:08,793 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:59:08,796 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:59:08,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:59:08" (1/1) ... [2019-01-14 04:59:08,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f8b5888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:08, skipping insertion in model container [2019-01-14 04:59:08,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:59:08" (1/1) ... [2019-01-14 04:59:08,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:59:08,865 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:59:09,278 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:59:09,307 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:59:09,476 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:59:09,556 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:59:09,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09 WrapperNode [2019-01-14 04:59:09,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:59:09,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:59:09,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:59:09,557 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:59:09,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:59:09,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:59:09,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:59:09,627 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:59:09,635 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,661 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (1/1) ... [2019-01-14 04:59:09,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:59:09,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:59:09,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:59:09,670 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:59:09,671 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (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 04:59:09,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 04:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-01-14 04:59:09,737 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-01-14 04:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-01-14 04:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-01-14 04:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 04:59:09,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-01-14 04:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 04:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-01-14 04:59:09,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:59:09,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:59:09,960 WARN L745 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-01-14 04:59:10,607 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:59:10,607 INFO L286 CfgBuilder]: Removed 21 assue(true) statements. [2019-01-14 04:59:10,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:59:10 BoogieIcfgContainer [2019-01-14 04:59:10,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:59:10,610 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:59:10,610 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:59:10,614 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:59:10,615 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:59:10,615 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:59:08" (1/3) ... [2019-01-14 04:59:10,617 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e03eb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:59:10, skipping insertion in model container [2019-01-14 04:59:10,617 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:59:10,617 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:09" (2/3) ... [2019-01-14 04:59:10,618 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e03eb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:59:10, skipping insertion in model container [2019-01-14 04:59:10,618 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:59:10,618 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:59:10" (3/3) ... [2019-01-14 04:59:10,621 INFO L375 chiAutomizerObserver]: Analyzing ICFG test-0217_true-valid-memsafety_false-termination.i [2019-01-14 04:59:10,672 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:59:10,673 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:59:10,673 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:59:10,673 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:59:10,673 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:59:10,674 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:59:10,674 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:59:10,674 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:59:10,674 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:59:10,689 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2019-01-14 04:59:10,715 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-01-14 04:59:10,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:59:10,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:59:10,724 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:59:10,724 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:59:10,724 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:59:10,725 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states. [2019-01-14 04:59:10,729 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-01-14 04:59:10,729 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:59:10,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:59:10,730 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:59:10,730 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:59:10,739 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 8#L-1true havoc main_#res;havoc main_#t~ret28, main_#t~nondet27, main_#t~ret30, main_#t~nondet29, main_#t~nondet26, main_#t~nondet31, main_#t~mem32.base, main_#t~mem32.offset, main_#t~mem33.base, main_#t~mem33.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 37#L832-2true [2019-01-14 04:59:10,739 INFO L796 eck$LassoCheckResult]: Loop: 37#L832-2true assume !!(0 != main_#t~nondet26);havoc main_#t~nondet26; 14#L830-2true assume !true; 45#L832-1true assume !true; 37#L832-2true [2019-01-14 04:59:10,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:59:10,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2019-01-14 04:59:10,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:59:10,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:59:10,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:10,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:59:10,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:59:10,872 INFO L82 PathProgramCache]: Analyzing trace with hash 52490, now seen corresponding path program 1 times [2019-01-14 04:59:10,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:59:10,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:59:10,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:10,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:59:10,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:59:10,903 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 04:59:10,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:59:10,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-14 04:59:10,909 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 04:59:10,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 04:59:10,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 04:59:10,928 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 2 states. [2019-01-14 04:59:10,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:59:10,940 INFO L93 Difference]: Finished difference Result 52 states and 72 transitions. [2019-01-14 04:59:10,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 04:59:10,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 52 states and 72 transitions. [2019-01-14 04:59:10,946 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-01-14 04:59:10,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 52 states to 48 states and 68 transitions. [2019-01-14 04:59:10,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 48 [2019-01-14 04:59:10,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 48 [2019-01-14 04:59:10,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 68 transitions. [2019-01-14 04:59:10,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:59:10,957 INFO L706 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2019-01-14 04:59:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states and 68 transitions. [2019-01-14 04:59:10,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-01-14 04:59:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-01-14 04:59:10,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 68 transitions. [2019-01-14 04:59:10,993 INFO L729 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2019-01-14 04:59:10,993 INFO L609 BuchiCegarLoop]: Abstraction has 48 states and 68 transitions. [2019-01-14 04:59:10,993 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:59:10,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 48 states and 68 transitions. [2019-01-14 04:59:10,996 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 39 [2019-01-14 04:59:10,996 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:59:10,996 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:59:10,996 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:59:10,996 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:59:10,997 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call ~#list~0.base, ~#list~0.offset := #Ultimate.allocOnStack(8);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 138#L-1 havoc main_#res;havoc main_#t~ret28, main_#t~nondet27, main_#t~ret30, main_#t~nondet29, main_#t~nondet26, main_#t~nondet31, main_#t~mem32.base, main_#t~mem32.offset, main_#t~mem33.base, main_#t~mem33.offset, main_~next~1.base, main_~next~1.offset, main_~end_point~0, main_~direction~0, main_~cursor~1.base, main_~cursor~1.offset; 139#L832-2 [2019-01-14 04:59:10,997 INFO L796 eck$LassoCheckResult]: Loop: 139#L832-2 assume !!(0 != main_#t~nondet26);havoc main_#t~nondet26; 116#L830-2 assume !(0 != main_#t~nondet27);havoc main_#t~nondet27; 123#L832-1 assume !(0 != main_#t~nondet29);havoc main_#t~nondet29; 139#L832-2 [2019-01-14 04:59:10,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:59:10,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2019-01-14 04:59:10,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:59:10,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:59:11,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:11,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:59:11,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:11,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:59:11,023 INFO L82 PathProgramCache]: Analyzing trace with hash 49962, now seen corresponding path program 1 times [2019-01-14 04:59:11,023 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:59:11,024 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:59:11,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:11,026 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:59:11,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:11,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:59:11,035 INFO L82 PathProgramCache]: Analyzing trace with hash 37288712, now seen corresponding path program 1 times [2019-01-14 04:59:11,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:59:11,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:59:11,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:11,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:59:11,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:59:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:59:11,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:59:11 BoogieIcfgContainer [2019-01-14 04:59:11,352 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:59:11,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:59:11,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:59:11,353 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:59:11,354 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:59:10" (3/4) ... [2019-01-14 04:59:11,356 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 04:59:11,397 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 04:59:11,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:59:11,398 INFO L168 Benchmark]: Toolchain (without parser) took 2606.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 950.0 MB in the beginning and 1.0 GB in the end (delta: -87.0 MB). Peak memory consumption was 62.4 MB. Max. memory is 11.5 GB. [2019-01-14 04:59:11,400 INFO L168 Benchmark]: CDTParser took 0.49 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. [2019-01-14 04:59:11,400 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2019-01-14 04:59:11,401 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.88 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 04:59:11,402 INFO L168 Benchmark]: Boogie Preprocessor took 42.89 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. [2019-01-14 04:59:11,403 INFO L168 Benchmark]: RCFGBuilder took 939.01 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2019-01-14 04:59:11,403 INFO L168 Benchmark]: BuchiAutomizer took 742.75 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. [2019-01-14 04:59:11,404 INFO L168 Benchmark]: Witness Printer took 44.20 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 04:59:11,409 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 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 764.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 68.88 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.89 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 939.01 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: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 742.75 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: 40.0 MB). Peak memory consumption was 40.0 MB. Max. memory is 11.5 GB. * Witness Printer took 44.20 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 (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 48 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 48 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 72 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 829]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1110} State at position 1 is {cursor=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bcc219e=0, \result=0, end_point=0, NULL=1110, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@5cf57054=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@340b864=0, NULL=0, list=1109, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@5cf57054=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@42e74d6a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@42e74d6a=0, list=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75ef475f=0, next=0, next=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32f6b3e8=0, cursor=0, direction=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c72aa6f=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bdce7e3=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 829]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L828] static list_t list; Loop: [L829] COND TRUE __VERIFIER_nondet_int() [L830] COND FALSE !(__VERIFIER_nondet_int()) [L832] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...