./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer --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 d3e2a15dfa55cea18ccb0a7fc8d29509c935fecf ................................................................................................................................................................................................................................................................................ 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 0.1.23-5842f4b [2018-11-18 15:51:06,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:51:06,607 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:51:06,618 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:51:06,619 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:51:06,620 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:51:06,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:51:06,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:51:06,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:51:06,634 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:51:06,635 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:51:06,635 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:51:06,636 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:51:06,636 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:51:06,637 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:51:06,638 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:51:06,638 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:51:06,639 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:51:06,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:51:06,645 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:51:06,646 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:51:06,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:51:06,648 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:51:06,648 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:51:06,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:51:06,649 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:51:06,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:51:06,651 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:51:06,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:51:06,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:51:06,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:51:06,653 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:51:06,653 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:51:06,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:51:06,654 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:51:06,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:51:06,654 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 15:51:06,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:51:06,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:51:06,667 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:51:06,667 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:51:06,668 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:51:06,668 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 15:51:06,668 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 15:51:06,668 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 15:51:06,668 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 15:51:06,668 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 15:51:06,668 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 15:51:06,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:51:06,669 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 15:51:06,670 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:51:06,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 15:51:06,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:51:06,671 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:51:06,671 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 15:51:06,671 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:51:06,671 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:51:06,671 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 15:51:06,672 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 15:51:06,672 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer 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 -> d3e2a15dfa55cea18ccb0a7fc8d29509c935fecf [2018-11-18 15:51:06,698 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:51:06,707 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:51:06,709 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:51:06,710 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:51:06,711 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:51:06,711 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-18 15:51:06,760 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/data/0144ad664/ac26c58b4b1049248bb7c342c88ebb43/FLAG341ab2b69 [2018-11-18 15:51:07,125 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:51:07,125 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/sv-benchmarks/c/termination-crafted/Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-18 15:51:07,131 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/data/0144ad664/ac26c58b4b1049248bb7c342c88ebb43/FLAG341ab2b69 [2018-11-18 15:51:07,142 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/data/0144ad664/ac26c58b4b1049248bb7c342c88ebb43 [2018-11-18 15:51:07,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:51:07,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:51:07,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:07,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:51:07,156 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:51:07,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7629e60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07, skipping insertion in model container [2018-11-18 15:51:07,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:51:07,179 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:51:07,305 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:07,308 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:51:07,319 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:51:07,329 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:51:07,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07 WrapperNode [2018-11-18 15:51:07,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:51:07,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:07,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:51:07,330 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:51:07,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:51:07,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:51:07,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:51:07,362 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:51:07,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... [2018-11-18 15:51:07,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:51:07,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:51:07,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:51:07,378 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:51:07,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/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 [2018-11-18 15:51:07,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:51:07,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:51:07,630 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:51:07,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:07 BoogieIcfgContainer [2018-11-18 15:51:07,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:51:07,631 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 15:51:07,631 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 15:51:07,634 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 15:51:07,634 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:51:07,635 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 03:51:07" (1/3) ... [2018-11-18 15:51:07,635 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bf3b62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:51:07, skipping insertion in model container [2018-11-18 15:51:07,636 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:51:07,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:51:07" (2/3) ... [2018-11-18 15:51:07,636 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bf3b62a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 03:51:07, skipping insertion in model container [2018-11-18 15:51:07,636 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 15:51:07,636 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:07" (3/3) ... [2018-11-18 15:51:07,638 INFO L375 chiAutomizerObserver]: Analyzing ICFG Bangalore_v2_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-18 15:51:07,687 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:51:07,688 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 15:51:07,688 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 15:51:07,688 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 15:51:07,688 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:51:07,688 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:51:07,689 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 15:51:07,689 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:51:07,689 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 15:51:07,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 15:51:07,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 15:51:07,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:51:07,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:51:07,726 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 15:51:07,726 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 15:51:07,726 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 15:51:07,726 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 15:51:07,727 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 15:51:07,727 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 15:51:07,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 15:51:07,727 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 15:51:07,728 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 15:51:07,734 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L16true assume main_~y~0 >= 0; 11#L17-3true [2018-11-18 15:51:07,735 INFO L796 eck$LassoCheckResult]: Loop: 11#L17-3true assume true; 8#L17-1true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 - main_~y~0; 11#L17-3true [2018-11-18 15:51:07,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:07,740 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-18 15:51:07,741 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:07,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:07,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:07,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:07,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:07,821 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:07,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1255, now seen corresponding path program 1 times [2018-11-18 15:51:07,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:07,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:07,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:07,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:07,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:07,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:51:07,833 INFO L82 PathProgramCache]: Analyzing trace with hash 28693832, now seen corresponding path program 1 times [2018-11-18 15:51:07,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:51:07,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:51:07,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:07,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:51:07,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:51:07,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:51:07,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 03:51:07 BoogieIcfgContainer [2018-11-18 15:51:07,961 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 15:51:07,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:51:07,962 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:51:07,962 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:51:07,962 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:51:07" (3/4) ... [2018-11-18 15:51:07,965 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 15:51:07,994 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c8843820-fb60-4fcc-abcc-72c5d403bd6b/bin-2019/uautomizer/witness.graphml [2018-11-18 15:51:07,995 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:51:07,995 INFO L168 Benchmark]: Toolchain (without parser) took 850.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -189.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:07,997 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:07,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.43 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:07,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.87 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:07,998 INFO L168 Benchmark]: Boogie Preprocessor took 15.92 ms. Allocated memory is still 1.0 GB. Free memory is still 939.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:51:07,998 INFO L168 Benchmark]: RCFGBuilder took 252.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 939.7 MB in the beginning and 1.2 GB in the end (delta: -222.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:07,999 INFO L168 Benchmark]: BuchiAutomizer took 330.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:51:07,999 INFO L168 Benchmark]: Witness Printer took 33.27 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. [2018-11-18 15:51:08,001 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 183.43 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.87 ms. Allocated memory is still 1.0 GB. Free memory was 942.3 MB in the beginning and 939.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.92 ms. Allocated memory is still 1.0 GB. Free memory is still 939.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 252.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 177.7 MB). Free memory was 939.7 MB in the beginning and 1.2 GB in the end (delta: -222.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 330.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Witness Printer took 33.27 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 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: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a4a721a=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b114f94=0, x=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE y >= 0 Loop: [L17] COND TRUE x >= 0 [L18] x = x - y End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...