./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/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 d089d3bcb050ed43a9f47a1e8909790d01358f90 ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:39:53,759 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:39:53,760 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:39:53,769 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:39:53,769 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:39:53,770 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:39:53,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:39:53,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:39:53,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:39:53,773 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:39:53,774 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:39:53,774 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:39:53,774 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:39:53,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:39:53,776 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:39:53,776 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:39:53,777 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:39:53,778 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:39:53,779 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:39:53,780 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:39:53,781 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:39:53,782 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:39:53,784 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:39:53,784 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:39:53,784 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:39:53,784 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:39:53,785 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:39:53,786 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:39:53,786 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:39:53,787 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:39:53,787 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:39:53,788 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:39:53,788 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:39:53,788 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:39:53,788 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:39:53,789 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:39:53,789 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:39:53,800 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:39:53,800 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:39:53,801 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:39:53,801 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:39:53,801 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:39:53,802 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:39:53,802 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:39:53,802 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:39:53,802 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:39:53,802 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:39:53,802 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:39:53,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:39:53,803 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:39:53,803 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:39:53,803 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:39:53,803 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:39:53,803 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:39:53,803 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:39:53,804 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:39:53,804 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:39:53,804 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:39:53,804 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:39:53,804 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:39:53,804 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:39:53,805 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:39:53,805 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:39:53,805 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:39:53,805 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:39:53,806 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:39:53,806 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_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/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 -> d089d3bcb050ed43a9f47a1e8909790d01358f90 [2018-11-28 12:39:53,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:39:53,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:39:53,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:39:53,840 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:39:53,841 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:39:53,841 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 12:39:53,884 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/data/bcb45ae4d/da20a3650773448d854e0debb64ad779/FLAG732d17045 [2018-11-28 12:39:54,278 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:39:54,278 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/sv-benchmarks/c/termination-crafted/Division_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 12:39:54,282 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/data/bcb45ae4d/da20a3650773448d854e0debb64ad779/FLAG732d17045 [2018-11-28 12:39:54,292 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/data/bcb45ae4d/da20a3650773448d854e0debb64ad779 [2018-11-28 12:39:54,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:39:54,295 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:39:54,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:39:54,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:39:54,297 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:39:54,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10faa8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54, skipping insertion in model container [2018-11-28 12:39:54,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,304 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:39:54,312 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:39:54,407 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:39:54,409 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:39:54,417 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:39:54,424 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:39:54,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54 WrapperNode [2018-11-28 12:39:54,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:39:54,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:39:54,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:39:54,425 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:39:54,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:39:54,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:39:54,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:39:54,442 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:39:54,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... [2018-11-28 12:39:54,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:39:54,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:39:54,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:39:54,453 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:39:54,453 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/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 [2018-11-28 12:39:54,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:39:54,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:39:54,587 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:39:54,588 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 12:39:54,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:54 BoogieIcfgContainer [2018-11-28 12:39:54,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:39:54,588 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:39:54,589 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:39:54,591 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:39:54,592 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:39:54,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:39:54" (1/3) ... [2018-11-28 12:39:54,593 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f27116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:39:54, skipping insertion in model container [2018-11-28 12:39:54,593 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:39:54,593 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:39:54" (2/3) ... [2018-11-28 12:39:54,594 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f27116a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:39:54, skipping insertion in model container [2018-11-28 12:39:54,594 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:39:54,594 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:54" (3/3) ... [2018-11-28 12:39:54,595 INFO L375 chiAutomizerObserver]: Analyzing ICFG Division_true-no-overflow_false-termination_true-valid-memsafety.c [2018-11-28 12:39:54,630 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:39:54,630 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:39:54,630 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:39:54,631 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:39:54,631 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:39:54,631 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:39:54,631 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:39:54,631 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:39:54,631 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:39:54,639 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 12:39:54,652 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:39:54,652 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:39:54,653 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:39:54,657 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:39:54,657 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:39:54,657 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:39:54,657 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 12:39:54,658 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:39:54,658 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:39:54,658 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:39:54,658 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:39:54,658 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:39:54,662 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~y~0;main_~y~0 := main_#t~nondet0;havoc main_#t~nondet0; 6#L14-2true [2018-11-28 12:39:54,663 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~y~0 >= 0 && main_~y~0 <= 10);main_~y~0 := (if 1 + 2 * main_~y~0 < 0 && 0 != (1 + 2 * main_~y~0) % 2 then 1 + (1 + 2 * main_~y~0) / 2 else (1 + 2 * main_~y~0) / 2); 6#L14-2true [2018-11-28 12:39:54,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:54,666 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:39:54,667 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:54,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:54,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:54,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:54,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:54,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:54,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:54,726 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 12:39:54,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:54,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:54,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:54,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:54,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:54,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:54,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:39:54,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 12:39:54,741 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:39:54,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:39:54,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:54,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:39:54,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:39:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:39:54,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:39:54 BoogieIcfgContainer [2018-11-28 12:39:54,852 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:39:54,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:39:54,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:39:54,853 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:39:54,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:39:54" (3/4) ... [2018-11-28 12:39:54,856 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 12:39:54,884 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7dfc2a3a-6dfa-488e-bb9b-89f15dfd754f/bin-2019/uautomizer/witness.graphml [2018-11-28 12:39:54,884 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:39:54,885 INFO L168 Benchmark]: Toolchain (without parser) took 590.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -127.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:54,886 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:54,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 129.49 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 950.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:54,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.91 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 948.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:54,887 INFO L168 Benchmark]: Boogie Preprocessor took 10.43 ms. Allocated memory is still 1.0 GB. Free memory is still 948.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:39:54,888 INFO L168 Benchmark]: RCFGBuilder took 135.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 948.0 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:54,888 INFO L168 Benchmark]: BuchiAutomizer took 263.95 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: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:39:54,889 INFO L168 Benchmark]: Witness Printer took 31.93 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 12:39:54,892 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 129.49 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 950.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.91 ms. Allocated memory is still 1.0 GB. Free memory was 950.6 MB in the beginning and 948.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.43 ms. Allocated memory is still 1.0 GB. Free memory is still 948.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 948.0 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 263.95 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: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Witness Printer took 31.93 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 0.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 14]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4631c591=0, \result=0, y=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 14]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int y = __VERIFIER_nondet_int(); Loop: [L14] COND TRUE y >= 0 && y <= 10 [L15] y = (2*y + 1) / 2 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...