./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-invgen/SpamAssassin-loop_true-unreach-call_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-invgen/SpamAssassin-loop_true-unreach-call_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 751def0588f132c393a8666a5acb62e8205c40a1 ........................................................................................................................................................................................................................................................................................................................... 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 03:48:07,015 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:48:07,017 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:48:07,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:48:07,030 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:48:07,031 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:48:07,033 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:48:07,035 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:48:07,038 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:48:07,038 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:48:07,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:48:07,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:48:07,041 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:48:07,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:48:07,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:48:07,044 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:48:07,045 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:48:07,047 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:48:07,049 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:48:07,050 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:48:07,051 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:48:07,052 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:48:07,055 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:48:07,055 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:48:07,055 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:48:07,056 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:48:07,057 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:48:07,058 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:48:07,059 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:48:07,060 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:48:07,060 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:48:07,061 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:48:07,061 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:48:07,061 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:48:07,062 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:48:07,063 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:48:07,063 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:48:07,079 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:48:07,079 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:48:07,081 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:48:07,081 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:48:07,081 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:48:07,081 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:48:07,081 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:48:07,081 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:48:07,082 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:48:07,082 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:48:07,082 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:48:07,082 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:48:07,082 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:48:07,082 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:48:07,083 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:48:07,083 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:48:07,083 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:48:07,083 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:48:07,083 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:48:07,083 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:48:07,084 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:48:07,084 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:48:07,084 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:48:07,084 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:48:07,084 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:48:07,084 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:48:07,085 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:48:07,085 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:48:07,085 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:48:07,085 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:48:07,085 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:48:07,086 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:48:07,086 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 -> 751def0588f132c393a8666a5acb62e8205c40a1 [2019-01-14 03:48:07,137 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:48:07,151 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:48:07,155 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:48:07,156 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:48:07,157 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:48:07,157 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2019-01-14 03:48:07,217 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cac8c498/82883b07815d4c618d666ee00cd5e249/FLAG1157bf7db [2019-01-14 03:48:07,617 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:48:07,617 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/SpamAssassin-loop_true-unreach-call_false-termination.i [2019-01-14 03:48:07,623 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cac8c498/82883b07815d4c618d666ee00cd5e249/FLAG1157bf7db [2019-01-14 03:48:07,644 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cac8c498/82883b07815d4c618d666ee00cd5e249 [2019-01-14 03:48:07,648 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:48:07,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:48:07,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:48:07,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:48:07,657 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:48:07,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:07,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263f7525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07, skipping insertion in model container [2019-01-14 03:48:07,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:07,671 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:48:07,690 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:48:07,899 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:48:07,905 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:48:07,938 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:48:07,963 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:48:07,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07 WrapperNode [2019-01-14 03:48:07,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:48:07,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:48:07,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:48:07,965 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:48:07,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:07,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:48:08,017 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:48:08,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:48:08,018 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:48:08,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (1/1) ... [2019-01-14 03:48:08,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:48:08,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:48:08,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:48:08,049 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:48:08,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (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 03:48:08,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:48:08,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:48:08,679 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:48:08,679 INFO L286 CfgBuilder]: Removed 38 assue(true) statements. [2019-01-14 03:48:08,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:08 BoogieIcfgContainer [2019-01-14 03:48:08,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:48:08,682 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:48:08,682 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:48:08,685 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:48:08,685 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:08,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:48:07" (1/3) ... [2019-01-14 03:48:08,686 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c4bfd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:48:08, skipping insertion in model container [2019-01-14 03:48:08,687 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:08,687 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:07" (2/3) ... [2019-01-14 03:48:08,687 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c4bfd98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:48:08, skipping insertion in model container [2019-01-14 03:48:08,687 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:08,688 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:08" (3/3) ... [2019-01-14 03:48:08,689 INFO L375 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop_true-unreach-call_false-termination.i [2019-01-14 03:48:08,739 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:48:08,740 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:48:08,740 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:48:08,741 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:48:08,741 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:48:08,741 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:48:08,741 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:48:08,741 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:48:08,741 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:48:08,758 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states. [2019-01-14 03:48:08,784 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2019-01-14 03:48:08,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:08,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:08,790 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:08,790 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:48:08,790 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:48:08,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states. [2019-01-14 03:48:08,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 52 [2019-01-14 03:48:08,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:08,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:08,795 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:08,795 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:48:08,802 INFO L794 eck$LassoCheckResult]: Stem: 24#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1; 53#L17true assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 39#L20-2true [2019-01-14 03:48:08,802 INFO L796 eck$LassoCheckResult]: Loop: 39#L20-2true assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 55#L21-2true assume !true; 39#L20-2true [2019-01-14 03:48:08,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:08,806 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-01-14 03:48:08,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:08,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:08,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:08,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:08,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:08,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:08,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1591, now seen corresponding path program 1 times [2019-01-14 03:48:08,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:08,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:08,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:08,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:48:08,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:48:08,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 03:48:08,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 03:48:08,936 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 03:48:08,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-01-14 03:48:08,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-01-14 03:48:08,950 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2019-01-14 03:48:08,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 03:48:08,961 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2019-01-14 03:48:08,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 03:48:08,963 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 58 states and 62 transitions. [2019-01-14 03:48:08,967 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2019-01-14 03:48:08,972 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 58 states to 38 states and 41 transitions. [2019-01-14 03:48:08,973 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2019-01-14 03:48:08,973 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 38 [2019-01-14 03:48:08,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 41 transitions. [2019-01-14 03:48:08,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:48:08,975 INFO L706 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-01-14 03:48:08,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 41 transitions. [2019-01-14 03:48:09,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-01-14 03:48:09,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-01-14 03:48:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2019-01-14 03:48:09,005 INFO L729 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-01-14 03:48:09,005 INFO L609 BuchiCegarLoop]: Abstraction has 38 states and 41 transitions. [2019-01-14 03:48:09,005 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 03:48:09,005 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 41 transitions. [2019-01-14 03:48:09,007 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 36 [2019-01-14 03:48:09,007 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:09,007 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:09,008 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:09,008 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 03:48:09,008 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_#t~post7, main_#t~post8, main_#t~post9, main_#t~post10, main_~len~0, main_~i~0, main_~j~0, main_~bufsize~0, main_~limit~0;havoc main_~len~0;havoc main_~i~0;havoc main_~j~0;havoc main_~bufsize~0;main_~bufsize~0 := main_#t~nondet1;havoc main_#t~nondet1; 148#L17 assume !(main_~bufsize~0 < 0);main_~len~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~limit~0 := main_~bufsize~0 - 4;main_~i~0 := 0; 130#L20-2 [2019-01-14 03:48:09,008 INFO L796 eck$LassoCheckResult]: Loop: 130#L20-2 assume !!(main_~i~0 < main_~len~0);main_~j~0 := 0; 131#L21-2 assume !(main_~i~0 < main_~len~0 && main_~j~0 < main_~limit~0); 130#L20-2 [2019-01-14 03:48:09,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:09,009 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 2 times [2019-01-14 03:48:09,009 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:09,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:09,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:09,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:09,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:09,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:09,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1415, now seen corresponding path program 1 times [2019-01-14 03:48:09,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:09,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:09,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:09,023 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 03:48:09,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:09,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:09,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:09,030 INFO L82 PathProgramCache]: Analyzing trace with hash 959532, now seen corresponding path program 1 times [2019-01-14 03:48:09,030 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:09,031 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:09,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:09,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:09,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:09,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:09,248 WARN L181 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-01-14 03:48:09,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:48:09 BoogieIcfgContainer [2019-01-14 03:48:09,375 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:48:09,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:48:09,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:48:09,375 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:48:09,377 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:08" (3/4) ... [2019-01-14 03:48:09,381 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 03:48:09,437 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 03:48:09,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:48:09,438 INFO L168 Benchmark]: Toolchain (without parser) took 1789.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -133.4 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:09,440 INFO L168 Benchmark]: CDTParser took 0.16 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 03:48:09,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 03:48:09,444 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.97 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 03:48:09,445 INFO L168 Benchmark]: Boogie Preprocessor took 24.78 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:09,449 INFO L168 Benchmark]: RCFGBuilder took 638.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:09,451 INFO L168 Benchmark]: BuchiAutomizer took 693.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:09,452 INFO L168 Benchmark]: Witness Printer took 62.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:09,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 312.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 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 52.97 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 24.78 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 638.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -182.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 693.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 11.5 GB. * Witness Printer took 62.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 38 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 38 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 62 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 20]: 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 {bufsize=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@ec6cbb6=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5c90a515=0, i=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6223cc5c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3c45026=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3eb7e517=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@41c58e38=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fccadaf=0, len=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54a298a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f28eb95=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@25ec28ba=0, limit=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 20]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int len; [L13] int i; [L14] int j; [L15] int bufsize; [L16] bufsize = __VERIFIER_nondet_int() [L17] COND FALSE !(bufsize < 0) [L18] len = __VERIFIER_nondet_int() [L19] int limit = bufsize - 4; [L20] i = 0 Loop: [L20] COND TRUE i < len [L21] j = 0 [L21] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...