./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.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/Division_true-no-overflow_false-termination_true-valid-memsafety.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 d089d3bcb050ed43a9f47a1e8909790d01358f90 ............................................................................................................................................................................................................................................................ 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 02:14:10,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:14:10,659 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:14:10,675 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:14:10,676 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:14:10,678 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:14:10,681 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:14:10,683 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:14:10,686 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:14:10,688 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:14:10,690 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:14:10,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:14:10,693 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:14:10,702 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:14:10,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:14:10,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:14:10,705 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:14:10,706 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:14:10,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:14:10,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:14:10,711 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:14:10,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:14:10,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:14:10,715 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:14:10,715 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:14:10,716 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:14:10,717 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:14:10,718 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:14:10,719 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:14:10,720 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:14:10,721 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:14:10,721 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:14:10,721 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:14:10,722 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:14:10,723 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:14:10,724 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:14:10,724 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:14:10,740 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:14:10,741 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:14:10,742 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:14:10,742 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:14:10,742 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:14:10,743 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:14:10,743 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:14:10,743 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:14:10,743 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:14:10,743 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:14:10,744 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:14:10,744 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:14:10,744 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:14:10,744 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:14:10,744 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:14:10,744 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:14:10,745 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:14:10,746 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:14:10,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:14:10,746 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:14:10,746 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:14:10,747 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:14:10,748 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:14:10,748 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:14:10,748 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:14:10,748 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:14:10,748 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:14:10,748 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:14:10,749 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:14:10,750 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 -> d089d3bcb050ed43a9f47a1e8909790d01358f90 [2019-01-14 02:14:10,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:14:10,811 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:14:10,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:14:10,821 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:14:10,822 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:14:10,823 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-14 02:14:10,892 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b934b2e5/817b0573c6e34cd884d7af914d01abc1/FLAG2981a4d1d [2019-01-14 02:14:11,381 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:14:11,381 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-14 02:14:11,388 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b934b2e5/817b0573c6e34cd884d7af914d01abc1/FLAG2981a4d1d [2019-01-14 02:14:11,728 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b934b2e5/817b0573c6e34cd884d7af914d01abc1 [2019-01-14 02:14:11,731 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:14:11,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:14:11,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:11,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:14:11,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:14:11,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f785cec 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 02:14:11,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:11" (1/1) ... [2019-01-14 02:14:11,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:14:11,761 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:14:11,957 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:11,965 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:14:11,983 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:12,001 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:14:12,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12 WrapperNode [2019-01-14 02:14:12,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:12,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:12,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:14:12,004 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:14:12,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:12,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:14:12,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:14:12,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:14:12,055 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (1/1) ... [2019-01-14 02:14:12,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:14:12,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:14:12,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:14:12,071 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:14:12,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (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 02:14:12,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:14:12,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:14:12,398 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:14:12,398 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 02:14:12,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:12 BoogieIcfgContainer [2019-01-14 02:14:12,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:14:12,400 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:14:12,400 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:14:12,404 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:14:12,405 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,405 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:14:11" (1/3) ... [2019-01-14 02:14:12,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59a4a3f3 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 02:14:12,406 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:12" (2/3) ... [2019-01-14 02:14:12,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@59a4a3f3 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 02:14:12,407 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:12,407 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 02:14:12,409 INFO L375 chiAutomizerObserver]: Analyzing ICFG Division_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-14 02:14:12,461 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:14:12,462 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:14:12,462 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:14:12,462 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:14:12,462 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:14:12,463 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:14:12,463 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:14:12,463 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:14:12,463 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:14:12,480 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-01-14 02:14:12,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 02:14:12,501 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:12,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:12,506 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:14:12,507 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 02:14:12,507 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:14:12,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-01-14 02:14:12,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 02:14:12,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:12,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:12,508 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-14 02:14:12,508 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 02:14:12,516 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L14-2true [2019-01-14 02:14:12,516 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~y~0 >= 0 && main_~y~0 <= 10);main_~y~0 := (if 1 + 2 * main_~y~0 < 0 && 0 != (1 + 2 * main_~y~0) % 2 then 1 + (1 + 2 * main_~y~0) / 2 else (1 + 2 * main_~y~0) / 2); 6#L14-2true [2019-01-14 02:14:12,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,523 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-14 02:14:12,525 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,526 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,625 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-01-14 02:14:12,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:12,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-14 02:14:12,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:12,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:12,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:12,654 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:12,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:14:12 BoogieIcfgContainer [2019-01-14 02:14:12,908 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:14:12,909 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:14:12,909 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:14:12,909 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:14:12,910 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 02:14:12,914 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 02:14:12,953 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 02:14:12,953 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:14:12,954 INFO L168 Benchmark]: Toolchain (without parser) took 1222.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -123.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:12,957 INFO L168 Benchmark]: CDTParser took 0.17 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 02:14:12,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:12,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.72 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:12,959 INFO L168 Benchmark]: Boogie Preprocessor took 25.59 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:12,960 INFO L168 Benchmark]: RCFGBuilder took 328.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:12,961 INFO L168 Benchmark]: BuchiAutomizer took 508.06 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:12,962 INFO L168 Benchmark]: Witness Printer took 44.97 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 02:14:12,967 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 270.38 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 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 39.72 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.59 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.99 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 508.06 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: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 11.5 GB. * Witness Printer took 44.97 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 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ee6361=0, \result=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int y = __VERIFIER_nondet_int(); Loop: [L14] COND TRUE y >= 0 && y <= 10 [L15] y = (2*y + 1) / 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...