./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_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/loop-acceleration/phases_true-unreach-call2_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 4a156731963582ce9a466285688eba3a68b58029 ................................................................................................................................................................................................................................................................................. 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 03:48:01,645 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:48:01,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:48:01,657 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:48:01,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:48:01,659 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:48:01,660 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:48:01,662 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:48:01,664 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:48:01,665 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:48:01,666 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:48:01,666 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:48:01,667 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:48:01,668 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:48:01,669 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:48:01,670 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:48:01,671 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:48:01,672 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:48:01,674 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:48:01,676 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:48:01,677 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:48:01,678 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:48:01,681 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:48:01,681 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:48:01,682 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:48:01,683 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:48:01,684 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:48:01,684 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:48:01,685 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:48:01,686 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:48:01,687 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:48:01,687 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:48:01,688 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:48:01,688 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:48:01,689 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:48:01,690 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:48:01,690 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:48:01,708 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:48:01,708 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:48:01,709 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:48:01,710 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:48:01,710 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:48:01,710 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:48:01,710 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:48:01,710 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:48:01,711 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:48:01,711 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:48:01,711 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:48:01,711 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:48:01,712 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:48:01,712 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:48:01,712 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:48:01,712 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:48:01,712 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:48:01,713 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:48:01,713 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:48:01,713 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:48:01,713 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:48:01,713 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:48:01,714 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:48:01,714 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:48:01,714 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:48:01,714 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:48:01,715 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:48:01,717 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:48:01,717 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:48:01,717 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:48:01,717 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:48:01,718 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:48:01,718 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 -> 4a156731963582ce9a466285688eba3a68b58029 [2019-01-14 03:48:01,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:48:01,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:48:01,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:48:01,804 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:48:01,805 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:48:01,805 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2019-01-14 03:48:01,869 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242630092/18d297e9762f474cae5b6aa236386351/FLAG370eea66f [2019-01-14 03:48:02,312 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:48:02,312 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-acceleration/phases_true-unreach-call2_false-termination.i [2019-01-14 03:48:02,317 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242630092/18d297e9762f474cae5b6aa236386351/FLAG370eea66f [2019-01-14 03:48:02,703 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242630092/18d297e9762f474cae5b6aa236386351 [2019-01-14 03:48:02,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:48:02,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:48:02,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:48:02,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:48:02,717 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:48:02,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:02,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124842ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02, skipping insertion in model container [2019-01-14 03:48:02,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:02,730 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:48:02,749 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:48:02,950 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:48:02,956 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:48:02,977 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:48:02,998 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:48:02,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02 WrapperNode [2019-01-14 03:48:02,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:48:03,000 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:48:03,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:48:03,001 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:48:03,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:48:03,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:48:03,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:48:03,047 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:48:03,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,061 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (1/1) ... [2019-01-14 03:48:03,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:48:03,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:48:03,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:48:03,089 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:48:03,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (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 03:48:03,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:48:03,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:48:03,482 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:48:03,482 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 03:48:03,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:03 BoogieIcfgContainer [2019-01-14 03:48:03,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:48:03,484 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:48:03,484 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:48:03,489 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:48:03,490 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:03,490 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:48:02" (1/3) ... [2019-01-14 03:48:03,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0545eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:48:03, skipping insertion in model container [2019-01-14 03:48:03,491 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:03,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:02" (2/3) ... [2019-01-14 03:48:03,492 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1e0545eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:48:03, skipping insertion in model container [2019-01-14 03:48:03,492 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:03,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:03" (3/3) ... [2019-01-14 03:48:03,495 INFO L375 chiAutomizerObserver]: Analyzing ICFG phases_true-unreach-call2_false-termination.i [2019-01-14 03:48:03,563 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:48:03,567 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:48:03,567 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:48:03,567 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:48:03,567 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:48:03,567 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:48:03,567 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:48:03,568 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:48:03,568 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:48:03,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-14 03:48:03,632 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:48:03,633 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:03,633 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:03,641 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:03,641 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:48:03,642 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:48:03,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-14 03:48:03,643 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 03:48:03,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:03,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:03,644 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:03,644 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:48:03,654 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~x~0, main_~y~0;main_~x~0 := 1;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~y~0 % 4294967296 > 0); 10#L15-2true [2019-01-14 03:48:03,655 INFO L796 eck$LassoCheckResult]: Loop: 10#L15-2true assume !!(main_~x~0 % 4294967296 < main_~y~0 % 4294967296); 3#L15true assume main_~x~0 % 4294967296 < (if main_~y~0 % 4294967296 < 0 && 0 != main_~y~0 % 4294967296 % (main_~x~0 % 4294967296) then (if main_~x~0 % 4294967296 < 0 then main_~y~0 % 4294967296 / (main_~x~0 % 4294967296) - 1 else 1 + main_~y~0 % 4294967296 / (main_~x~0 % 4294967296)) else main_~y~0 % 4294967296 / (main_~x~0 % 4294967296)) % 4294967296;main_~x~0 := main_~x~0 * main_~x~0; 10#L15-2true [2019-01-14 03:48:03,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:03,663 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-01-14 03:48:03,665 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:03,666 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:03,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:03,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:03,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:03,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:03,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times [2019-01-14 03:48:03,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:03,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:03,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:03,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:03,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:03,809 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-14 03:48:03,809 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-14 03:48:03,809 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-01-14 03:48:03,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:03,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:03,864 INFO L82 PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times [2019-01-14 03:48:03,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:03,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:03,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:03,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:03,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:03,872 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-01-14 03:48:03,872 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-01-14 03:48:03,873 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-01-14 03:48:03,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:04,553 WARN L181 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-01-14 03:48:04,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:48:04 BoogieIcfgContainer [2019-01-14 03:48:04,645 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:48:04,645 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:48:04,645 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:48:04,646 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:48:04,646 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:03" (3/4) ... [2019-01-14 03:48:04,649 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 03:48:04,686 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 03:48:04,686 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:48:04,687 INFO L168 Benchmark]: Toolchain (without parser) took 1979.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -99.5 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:04,688 INFO L168 Benchmark]: CDTParser took 0.15 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 03:48:04,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:04,690 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.59 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:04,691 INFO L168 Benchmark]: Boogie Preprocessor took 39.37 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:04,691 INFO L168 Benchmark]: RCFGBuilder took 394.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:04,693 INFO L168 Benchmark]: BuchiAutomizer took 1160.66 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:04,693 INFO L168 Benchmark]: Witness Printer took 40.67 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 03:48:04,698 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 287.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 46.59 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.37 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 394.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -143.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1160.66 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: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 40.67 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 1.0s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: 14]: 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 {\result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2261310a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@dfc2541=0, x=1, y=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned int x = 1; [L12] unsigned int y = __VERIFIER_nondet_uint(); [L13] COND FALSE !(!(y > 0)) Loop: [L14] COND TRUE x < y [L15] COND TRUE x < y / x [L16] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...