./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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/WhileTrue_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 b58543c5c6c478461bb3678f5712726562def78f .......................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:13:20,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:13:20,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:13:20,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:13:20,777 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:13:20,778 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:13:20,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:13:20,783 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:13:20,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:13:20,786 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:13:20,787 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:13:20,787 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:13:20,788 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:13:20,790 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:13:20,791 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:13:20,792 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:13:20,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:13:20,796 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:13:20,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:13:20,801 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:13:20,802 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:13:20,804 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:13:20,807 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:13:20,808 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:13:20,808 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:13:20,809 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:13:20,811 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:13:20,812 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:13:20,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:13:20,815 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:13:20,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:13:20,816 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:13:20,816 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:13:20,816 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:13:20,818 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:13:20,819 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:13:20,819 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:13:20,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:13:20,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:13:20,847 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:13:20,850 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:13:20,850 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:13:20,851 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:13:20,852 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:13:20,852 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:13:20,852 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:13:20,852 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:13:20,852 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:13:20,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:13:20,853 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:13:20,854 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:13:20,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:13:20,854 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:13:20,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:13:20,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:13:20,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:13:20,855 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:13:20,855 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:13:20,855 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:13:20,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:13:20,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:13:20,855 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:13:20,859 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:13:20,860 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:13:20,860 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:13:20,862 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:13:20,863 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 -> b58543c5c6c478461bb3678f5712726562def78f [2018-11-28 23:13:20,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:13:20,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:13:20,936 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:13:20,938 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:13:20,938 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:13:20,939 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 23:13:21,012 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd54a0352/b1acc64bea4e44248e8590ff61b34c50/FLAG06644f8c8 [2018-11-28 23:13:21,456 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:13:21,457 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 23:13:21,463 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd54a0352/b1acc64bea4e44248e8590ff61b34c50/FLAG06644f8c8 [2018-11-28 23:13:21,820 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd54a0352/b1acc64bea4e44248e8590ff61b34c50 [2018-11-28 23:13:21,824 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:13:21,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:13:21,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:13:21,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:13:21,830 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:13:21,831 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:13:21" (1/1) ... [2018-11-28 23:13:21,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566d1eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:21, skipping insertion in model container [2018-11-28 23:13:21,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:13:21" (1/1) ... [2018-11-28 23:13:21,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:13:21,860 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:13:22,034 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:13:22,038 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:13:22,054 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:13:22,068 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:13:22,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22 WrapperNode [2018-11-28 23:13:22,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:13:22,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:13:22,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:13:22,070 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:13:22,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,086 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:13:22,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:13:22,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:13:22,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:13:22,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (1/1) ... [2018-11-28 23:13:22,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:13:22,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:13:22,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:13:22,131 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:13:22,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (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 [2018-11-28 23:13:22,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:13:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:13:22,411 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:13:22,411 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:13:22,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:13:22 BoogieIcfgContainer [2018-11-28 23:13:22,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:13:22,413 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:13:22,413 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:13:22,417 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:13:22,418 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:13:22,418 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:13:21" (1/3) ... [2018-11-28 23:13:22,419 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14138653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:13:22, skipping insertion in model container [2018-11-28 23:13:22,419 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:13:22,420 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:13:22" (2/3) ... [2018-11-28 23:13:22,421 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@14138653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:13:22, skipping insertion in model container [2018-11-28 23:13:22,421 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:13:22,421 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:13:22" (3/3) ... [2018-11-28 23:13:22,424 INFO L375 chiAutomizerObserver]: Analyzing ICFG WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 23:13:22,484 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:13:22,484 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:13:22,485 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:13:22,485 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:13:22,485 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:13:22,485 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:13:22,485 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:13:22,485 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:13:22,485 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:13:22,499 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:13:22,521 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:13:22,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:13:22,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:13:22,527 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:13:22,527 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:13:22,528 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:13:22,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:13:22,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:13:22,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:13:22,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:13:22,529 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:13:22,529 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:13:22,536 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res; 6#L13-2true [2018-11-28 23:13:22,537 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(0 != ~unnamed0~0~true); 6#L13-2true [2018-11-28 23:13:22,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:13:22,543 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:13:22,545 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:13:22,545 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:13:22,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:22,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:13:22,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:22,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:22,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:13:22,643 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 23:13:22,643 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:13:22,644 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:13:22,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:22,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:13:22,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:22,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:13:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:13:22,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:13:22,653 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:13:22,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:22,655 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:13:22,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:13:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:13:22,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:13:22 BoogieIcfgContainer [2018-11-28 23:13:22,771 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:13:22,772 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:13:22,772 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:13:22,773 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:13:22,776 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:13:22" (3/4) ... [2018-11-28 23:13:22,781 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:13:22,860 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:13:22,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:13:22,861 INFO L168 Benchmark]: Toolchain (without parser) took 1037.22 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -128.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:13:22,871 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. [2018-11-28 23:13:22,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:22,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.42 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:13:22,883 INFO L168 Benchmark]: Boogie Preprocessor took 24.36 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:13:22,886 INFO L168 Benchmark]: RCFGBuilder took 281.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:22,891 INFO L168 Benchmark]: BuchiAutomizer took 358.75 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:13:22,892 INFO L168 Benchmark]: Witness Printer took 88.78 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. [2018-11-28 23:13:22,905 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 243.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 35.42 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.36 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 281.63 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 358.75 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Witness Printer took 88.78 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 0.2s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: Loop: [L13] COND TRUE \read(true) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...