./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_02_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_02_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/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 9c3e090d52ebca0d111383f72b5851cb29661ded ....................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-09 06:13:12,925 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 06:13:12,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 06:13:12,934 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 06:13:12,934 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 06:13:12,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 06:13:12,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 06:13:12,936 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 06:13:12,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 06:13:12,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 06:13:12,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 06:13:12,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 06:13:12,939 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 06:13:12,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 06:13:12,941 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 06:13:12,941 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 06:13:12,942 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 06:13:12,943 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 06:13:12,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 06:13:12,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 06:13:12,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 06:13:12,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 06:13:12,948 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 06:13:12,949 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 06:13:12,949 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 06:13:12,949 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 06:13:12,950 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 06:13:12,951 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 06:13:12,951 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 06:13:12,952 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 06:13:12,952 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 06:13:12,952 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 06:13:12,953 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 06:13:12,953 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 06:13:12,953 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 06:13:12,954 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 06:13:12,954 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-09 06:13:12,964 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 06:13:12,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 06:13:12,965 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 06:13:12,966 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-09 06:13:12,966 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-09 06:13:12,967 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 06:13:12,967 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-09 06:13:12,968 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 06:13:12,968 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-09 06:13:12,968 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 06:13:12,968 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 06:13:12,968 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-09 06:13:12,968 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 06:13:12,968 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 06:13:12,968 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-09 06:13:12,969 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-09 06:13:12,969 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_591fd06f-d383-4202-8e49-27a6283d749a/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 -> 9c3e090d52ebca0d111383f72b5851cb29661ded [2018-12-09 06:13:12,991 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 06:13:13,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 06:13:13,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 06:13:13,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 06:13:13,004 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 06:13:13,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_02_false-termination_true-no-overflow.c [2018-12-09 06:13:13,042 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/data/05d4802e1/7d6325ddf15342efaf1ae1fd25fc389f/FLAG76ab208a6 [2018-12-09 06:13:13,420 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 06:13:13,420 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/sv-benchmarks/c/termination-restricted-15/NO_02_false-termination_true-no-overflow.c [2018-12-09 06:13:13,423 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/data/05d4802e1/7d6325ddf15342efaf1ae1fd25fc389f/FLAG76ab208a6 [2018-12-09 06:13:13,431 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/data/05d4802e1/7d6325ddf15342efaf1ae1fd25fc389f [2018-12-09 06:13:13,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 06:13:13,434 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 06:13:13,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 06:13:13,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 06:13:13,436 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 06:13:13,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73973e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13, skipping insertion in model container [2018-12-09 06:13:13,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 06:13:13,451 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 06:13:13,528 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:13:13,531 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 06:13:13,539 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 06:13:13,546 INFO L195 MainTranslator]: Completed translation [2018-12-09 06:13:13,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13 WrapperNode [2018-12-09 06:13:13,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 06:13:13,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 06:13:13,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 06:13:13,547 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 06:13:13,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 06:13:13,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 06:13:13,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 06:13:13,565 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 06:13:13,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,572 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... [2018-12-09 06:13:13,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 06:13:13,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 06:13:13,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 06:13:13,604 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 06:13:13,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/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 [2018-12-09 06:13:13,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 06:13:13,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 06:13:13,709 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 06:13:13,709 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 06:13:13,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:13:13 BoogieIcfgContainer [2018-12-09 06:13:13,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 06:13:13,710 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-09 06:13:13,710 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-09 06:13:13,713 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-09 06:13:13,713 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 06:13:13,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.12 06:13:13" (1/3) ... [2018-12-09 06:13:13,714 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@694954af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 06:13:13, skipping insertion in model container [2018-12-09 06:13:13,714 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 06:13:13,714 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:13:13" (2/3) ... [2018-12-09 06:13:13,715 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@694954af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.12 06:13:13, skipping insertion in model container [2018-12-09 06:13:13,715 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-09 06:13:13,715 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:13:13" (3/3) ... [2018-12-09 06:13:13,716 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_02_false-termination_true-no-overflow.c [2018-12-09 06:13:13,752 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 06:13:13,752 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-09 06:13:13,752 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-09 06:13:13,753 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-09 06:13:13,753 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 06:13:13,753 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 06:13:13,753 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-09 06:13:13,753 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 06:13:13,753 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-09 06:13:13,761 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-09 06:13:13,774 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 06:13:13,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 06:13:13,775 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 06:13:13,778 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 06:13:13,779 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 06:13:13,779 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-09 06:13:13,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-12-09 06:13:13,779 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-09 06:13:13,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 06:13:13,779 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 06:13:13,780 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-09 06:13:13,780 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-09 06:13:13,784 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 8#L10-2true [2018-12-09 06:13:13,785 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 < 100);main_~j~0 := 0; 3#L12-2true assume !(main_~j~0 < 1); 10#L12-3true main_~i~0 := 1 + main_~i~0; 8#L10-2true [2018-12-09 06:13:13,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:13:13,789 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-09 06:13:13,790 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 06:13:13,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 06:13:13,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:13:13,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:13:13,849 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-12-09 06:13:13,849 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 06:13:13,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 06:13:13,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:13:13,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 06:13:13,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 06:13:13,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 06:13:13,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 06:13:13,886 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-09 06:13:13,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 06:13:13,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 06:13:13,897 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-12-09 06:13:13,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 06:13:13,907 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2018-12-09 06:13:13,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 06:13:13,910 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 7 transitions. [2018-12-09 06:13:13,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 06:13:13,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 3 states and 3 transitions. [2018-12-09 06:13:13,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2018-12-09 06:13:13,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2018-12-09 06:13:13,915 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2018-12-09 06:13:13,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-09 06:13:13,915 INFO L705 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2018-12-09 06:13:13,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2018-12-09 06:13:13,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2018-12-09 06:13:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-09 06:13:13,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2018-12-09 06:13:13,934 INFO L728 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2018-12-09 06:13:13,934 INFO L608 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2018-12-09 06:13:13,934 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-09 06:13:13,934 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2018-12-09 06:13:13,934 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-09 06:13:13,934 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-09 06:13:13,934 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-09 06:13:13,935 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-09 06:13:13,935 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-09 06:13:13,935 INFO L794 eck$LassoCheckResult]: Stem: 25#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 26#L10-2 assume !!(main_~i~0 < 100);main_~j~0 := 0; 24#L12-2 [2018-12-09 06:13:13,935 INFO L796 eck$LassoCheckResult]: Loop: 24#L12-2 assume !!(main_~j~0 < 1);main_~j~0 := main_~j~0; 24#L12-2 [2018-12-09 06:13:13,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:13:13,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-12-09 06:13:13,935 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 06:13:13,935 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 06:13:13,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:13:13,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:13:13,941 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2018-12-09 06:13:13,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 06:13:13,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 06:13:13,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:13:13,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 06:13:13,947 INFO L82 PathProgramCache]: Analyzing trace with hash 31081, now seen corresponding path program 1 times [2018-12-09 06:13:13,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 06:13:13,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 06:13:13,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 06:13:13,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 06:13:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 06:13:13,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.12 06:13:13 BoogieIcfgContainer [2018-12-09 06:13:13,993 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-09 06:13:13,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 06:13:13,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 06:13:13,994 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 06:13:13,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:13:13" (3/4) ... [2018-12-09 06:13:13,996 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-09 06:13:14,018 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_591fd06f-d383-4202-8e49-27a6283d749a/bin-2019/uautomizer/witness.graphml [2018-12-09 06:13:14,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 06:13:14,019 INFO L168 Benchmark]: Toolchain (without parser) took 585.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -109.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:13:14,020 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:13:14,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 112.70 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 06:13:14,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.68 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 06:13:14,021 INFO L168 Benchmark]: Boogie Preprocessor took 38.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:13:14,022 INFO L168 Benchmark]: RCFGBuilder took 106.39 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-09 06:13:14,022 INFO L168 Benchmark]: BuchiAutomizer took 283.22 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. [2018-12-09 06:13:14,022 INFO L168 Benchmark]: Witness Printer took 24.81 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. [2018-12-09 06:13:14,025 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 112.70 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.2 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 17.68 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 106.39 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: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 283.22 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: 34.9 MB). Peak memory consumption was 34.9 MB. Max. memory is 11.5 GB. * Witness Printer took 24.81 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.2s and 2 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 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 3 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 12]: 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, i=0, j=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 [L10] COND TRUE i < 100 [L11] j = 0 Loop: [L12] COND TRUE j < 1 [L13] j = j+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...