./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 2e94e6aa 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 0.1.24-2e94e6a [2019-01-01 21:31:43,143 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:31:43,148 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:31:43,161 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:31:43,161 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:31:43,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:31:43,164 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:31:43,166 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:31:43,168 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:31:43,169 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:31:43,170 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:31:43,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:31:43,171 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:31:43,172 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:31:43,174 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:31:43,175 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:31:43,175 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:31:43,178 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:31:43,181 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:31:43,182 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:31:43,184 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:31:43,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:31:43,188 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:31:43,188 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:31:43,188 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:31:43,189 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:31:43,190 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:31:43,191 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:31:43,192 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:31:43,194 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:31:43,194 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:31:43,195 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:31:43,195 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:31:43,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:31:43,197 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:31:43,198 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:31:43,198 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:31:43,215 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:31:43,216 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:31:43,217 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:31:43,217 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:31:43,217 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:31:43,218 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:31:43,218 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:31:43,218 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:31:43,218 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:31:43,218 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:31:43,218 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:31:43,218 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:31:43,219 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:31:43,219 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:31:43,219 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:31:43,219 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:31:43,219 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:31:43,219 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:31:43,220 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:31:43,221 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:31:43,222 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:31:43,222 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:31:43,222 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:31:43,222 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:31:43,222 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:31:43,223 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:31:43,223 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:31:43,224 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:31:43,225 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:31:43,225 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 [2019-01-01 21:31:43,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:31:43,277 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:31:43,281 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:31:43,283 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:31:43,283 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:31:43,284 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 21:31:43,346 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb3e6faf/5575bc7e2e7845aeac63068722152ad2/FLAGeb6a14529 [2019-01-01 21:31:43,821 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:31:43,822 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 21:31:43,829 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb3e6faf/5575bc7e2e7845aeac63068722152ad2/FLAGeb6a14529 [2019-01-01 21:31:44,194 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb3e6faf/5575bc7e2e7845aeac63068722152ad2 [2019-01-01 21:31:44,198 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:31:44,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:31:44,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:31:44,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:31:44,205 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:31:44,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d51a5fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44, skipping insertion in model container [2019-01-01 21:31:44,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:31:44,235 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:31:44,413 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:31:44,420 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:31:44,441 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:31:44,459 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:31:44,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44 WrapperNode [2019-01-01 21:31:44,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:31:44,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:31:44,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:31:44,462 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:31:44,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,479 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:31:44,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:31:44,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:31:44,506 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:31:44,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (1/1) ... [2019-01-01 21:31:44,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:31:44,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:31:44,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:31:44,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:31:44,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (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 [2019-01-01 21:31:44,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:31:44,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:31:44,885 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:31:44,886 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-01 21:31:44,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:31:44 BoogieIcfgContainer [2019-01-01 21:31:44,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:31:44,887 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:31:44,887 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:31:44,891 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:31:44,892 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:31:44,892 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:31:44" (1/3) ... [2019-01-01 21:31:44,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@362508a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:31:44, skipping insertion in model container [2019-01-01 21:31:44,894 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:31:44,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:31:44" (2/3) ... [2019-01-01 21:31:44,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@362508a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:31:44, skipping insertion in model container [2019-01-01 21:31:44,895 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:31:44,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:31:44" (3/3) ... [2019-01-01 21:31:44,897 INFO L375 chiAutomizerObserver]: Analyzing ICFG WhileTrue_true-no-overflow_false-termination_true-valid-memsafety.c [2019-01-01 21:31:44,961 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:31:44,962 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:31:44,962 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:31:44,962 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:31:44,963 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:31:44,963 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:31:44,963 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:31:44,963 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:31:44,963 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:31:44,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-01-01 21:31:45,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:31:45,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:31:45,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:31:45,011 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:31:45,011 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:31:45,011 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:31:45,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2019-01-01 21:31:45,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:31:45,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:31:45,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:31:45,014 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:31:45,014 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:31:45,025 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res; 6#L13-2true [2019-01-01 21:31:45,026 INFO L796 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(0 != ~unnamed0~0~true); 6#L13-2true [2019-01-01 21:31:45,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:31:45,032 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 21:31:45,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:31:45,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:31:45,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:31:45,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:31:45,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:31:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:31:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:31:45,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:31:45,144 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2019-01-01 21:31:45,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:31:45,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:31:45,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:31:45,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:31:45,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:31:45,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:31:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:31:45,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:31:45,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-01 21:31:45,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:31:45,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:31:45,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:31:45,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:31:45,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:31:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:31:45,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:31:45,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:31:45 BoogieIcfgContainer [2019-01-01 21:31:45,248 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:31:45,249 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:31:45,249 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:31:45,249 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:31:45,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:31:44" (3/4) ... [2019-01-01 21:31:45,254 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-01 21:31:45,300 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 21:31:45,300 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:31:45,301 INFO L168 Benchmark]: Toolchain (without parser) took 1102.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -107.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:31:45,304 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. [2019-01-01 21:31:45,305 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.88 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:31:45,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.38 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:31:45,306 INFO L168 Benchmark]: Boogie Preprocessor took 25.10 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:31:45,308 INFO L168 Benchmark]: RCFGBuilder took 354.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2019-01-01 21:31:45,309 INFO L168 Benchmark]: BuchiAutomizer took 360.95 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. [2019-01-01 21:31:45,310 INFO L168 Benchmark]: Witness Printer took 51.77 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. [2019-01-01 21:31:45,315 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 258.88 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 45.38 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.10 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 354.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 360.95 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: 28.2 MB). Peak memory consumption was 28.2 MB. Max. memory is 11.5 GB. * Witness Printer took 51.77 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...