./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/Arrays02-EquivalentConstantIndices_false-termination_true-valid-memsafety_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-crafted/Arrays02-EquivalentConstantIndices_false-termination_true-valid-memsafety_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 072df04afae5ae28487e0b8208c52f13961dea34 ..................................................................................................................................................................................................................................................................... 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 02:14:10,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:14:10,579 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:14:10,590 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:14:10,591 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:14:10,592 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:14:10,593 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:14:10,595 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:14:10,597 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:14:10,598 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:14:10,599 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:14:10,599 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:14:10,600 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:14:10,601 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:14:10,602 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:14:10,603 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:14:10,604 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:14:10,606 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:14:10,608 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:14:10,609 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:14:10,611 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:14:10,612 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:14:10,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:14:10,615 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:14:10,615 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:14:10,616 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:14:10,617 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:14:10,618 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:14:10,619 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:14:10,620 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:14:10,621 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:14:10,622 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:14:10,622 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:14:10,622 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:14:10,623 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:14:10,624 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:14:10,624 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:14:10,643 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:14:10,643 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:14:10,644 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:14:10,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:14:10,646 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:14:10,646 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:14:10,647 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:14:10,647 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:14:10,647 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:14:10,647 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:14:10,647 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:14:10,647 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:14:10,648 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:14:10,649 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:14:10,649 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:14:10,649 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:14:10,649 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:14:10,649 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:14:10,650 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:14:10,650 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:14:10,650 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:14:10,650 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:14:10,650 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:14:10,650 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:14:10,651 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:14:10,653 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:14:10,653 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:14:10,653 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:14:10,654 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:14:10,654 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 -> 072df04afae5ae28487e0b8208c52f13961dea34 [2019-01-14 02:14:10,719 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:14:10,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:14:10,736 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:14:10,738 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:14:10,738 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:14:10,739 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Arrays02-EquivalentConstantIndices_false-termination_true-valid-memsafety_true-no-overflow.c [2019-01-14 02:14:10,800 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969610903/953159969f7a491c896eb3d21678bbd1/FLAG1248581db [2019-01-14 02:14:11,198 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:14:11,199 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Arrays02-EquivalentConstantIndices_false-termination_true-valid-memsafety_true-no-overflow.c [2019-01-14 02:14:11,204 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969610903/953159969f7a491c896eb3d21678bbd1/FLAG1248581db [2019-01-14 02:14:11,577 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/969610903/953159969f7a491c896eb3d21678bbd1 [2019-01-14 02:14:11,580 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:14:11,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:14:11,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:11,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:14:11,585 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:14:11,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,589 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4bf979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11, skipping insertion in model container [2019-01-14 02:14:11,590 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:14:11,612 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:14:11,838 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:11,846 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:14:11,874 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:11,904 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:14:11,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11 WrapperNode [2019-01-14 02:14:11,904 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:11,905 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:11,906 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:14:11,906 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:14:11,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:11,955 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:14:11,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:14:11,956 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:14:11,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,970 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:14:11,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:14:11,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:14:11,994 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:14:11,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (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 02:14:12,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-14 02:14:12,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:14:12,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:14:12,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-14 02:14:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 02:14:12,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-14 02:14:12,364 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:14:12,370 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 02:14:12,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12 BoogieIcfgContainer [2019-01-14 02:14:12,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:14:12,373 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:14:12,373 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:14:12,385 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:14:12,388 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:14:11" (1/3) ... [2019-01-14 02:14:12,390 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48dd5874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:12, skipping insertion in model container [2019-01-14 02:14:12,390 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:11" (2/3) ... [2019-01-14 02:14:12,390 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@48dd5874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:12, skipping insertion in model container [2019-01-14 02:14:12,390 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12" (3/3) ... [2019-01-14 02:14:12,394 INFO L375 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices_false-termination_true-valid-memsafety_true-no-overflow.c [2019-01-14 02:14:12,457 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:14:12,457 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:14:12,458 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:14:12,458 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:14:12,458 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:14:12,458 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:14:12,458 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:14:12,458 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:14:12,458 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:14:12,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-14 02:14:12,512 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:14:12,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:12,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:12,520 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:14:12,520 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:14:12,520 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:14:12,521 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-14 02:14:12,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:14:12,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:12,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:12,522 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:14:12,523 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:14:12,530 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~mem2, main_#t~nondet3, main_#t~mem1, main_~#a~0.base, main_~#a~0.offset;call main_~#a~0.base, main_~#a~0.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet0; 4#L13-3true [2019-01-14 02:14:12,530 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-3true call main_#t~mem1 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4); 7#L13-1true assume !!(main_#t~mem1 >= 0);havoc main_#t~mem1;call main_#t~mem2 := read~int(main_~#a~0.base, 8 + main_~#a~0.offset, 4);call write~int(main_#t~mem2 - 1, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~mem2;call write~int(main_#t~nondet3, main_~#a~0.base, 8 + main_~#a~0.offset, 4);havoc main_#t~nondet3; 4#L13-3true [2019-01-14 02:14:12,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,536 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-01-14 02:14:12,537 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,538 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,654 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2019-01-14 02:14:12,654 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,670 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2019-01-14 02:14:12,670 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,670 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:13,073 WARN L181 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2019-01-14 02:14:13,207 WARN L181 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2019-01-14 02:14:13,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:14:13 BoogieIcfgContainer [2019-01-14 02:14:13,252 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:14:13,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:14:13,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:14:13,253 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:14:13,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12" (3/4) ... [2019-01-14 02:14:13,257 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 02:14:13,294 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 02:14:13,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:14:13,295 INFO L168 Benchmark]: Toolchain (without parser) took 1715.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -106.9 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,297 INFO L168 Benchmark]: CDTParser took 0.18 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 02:14:13,298 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.25 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,299 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.62 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:13,299 INFO L168 Benchmark]: Boogie Preprocessor took 37.61 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,300 INFO L168 Benchmark]: RCFGBuilder took 378.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,302 INFO L168 Benchmark]: BuchiAutomizer took 878.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:13,303 INFO L168 Benchmark]: Witness Printer took 42.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:13,308 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 323.25 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 49.62 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.61 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 378.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 878.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. * Witness Printer took 42.35 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10b7dbb7=7065, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@375a9a30=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@381a114=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@153eec39=0, \result=0, a=0, NULL=0, a=-1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...