./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.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_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/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 89ce36fdd9a6142844b72609f6c752ece8563e1f ..................................................................................................................................................................................................................................................................................................................................... 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 12:52:56,625 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:52:56,626 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:52:56,634 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:52:56,634 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:52:56,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:52:56,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:52:56,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:52:56,637 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:52:56,637 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:52:56,637 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:52:56,638 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:52:56,638 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:52:56,638 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:52:56,639 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:52:56,639 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:52:56,640 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:52:56,641 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:52:56,642 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:52:56,643 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:52:56,643 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:52:56,644 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:52:56,645 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:52:56,645 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:52:56,645 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:52:56,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:52:56,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:52:56,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:52:56,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:52:56,647 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:52:56,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:52:56,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:52:56,648 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:52:56,648 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:52:56,649 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:52:56,650 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:52:56,650 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:52:56,660 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:52:56,661 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:52:56,661 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:52:56,662 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:52:56,662 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:52:56,662 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:52:56,662 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:52:56,662 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:52:56,662 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:52:56,663 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:52:56,663 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:52:56,663 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:52:56,663 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:52:56,663 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:52:56,663 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:52:56,664 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:52:56,665 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:52:56,665 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:52:56,665 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:52:56,665 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:52:56,665 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:52:56,665 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:52:56,666 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:52:56,666 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_b426694c-4fa4-4b4b-9b18-d993784a4d43/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 -> 89ce36fdd9a6142844b72609f6c752ece8563e1f [2018-11-28 12:52:56,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:52:56,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:52:56,700 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:52:56,701 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:52:56,701 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:52:56,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.c [2018-11-28 12:52:56,745 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/data/ef2b61dd6/2b4c9d099070411b939479cae48f5633/FLAGe2da956ef [2018-11-28 12:52:57,144 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:52:57,145 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/sv-benchmarks/c/termination-restricted-15/NO_03_false-termination_true-no-overflow.c [2018-11-28 12:52:57,148 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/data/ef2b61dd6/2b4c9d099070411b939479cae48f5633/FLAGe2da956ef [2018-11-28 12:52:57,159 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/data/ef2b61dd6/2b4c9d099070411b939479cae48f5633 [2018-11-28 12:52:57,161 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:52:57,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:52:57,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:52:57,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:52:57,164 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:52:57,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13220c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57, skipping insertion in model container [2018-11-28 12:52:57,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:52:57,179 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:52:57,273 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:52:57,276 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:52:57,284 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:52:57,292 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:52:57,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57 WrapperNode [2018-11-28 12:52:57,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:52:57,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:52:57,293 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:52:57,293 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:52:57,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,310 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:52:57,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:52:57,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:52:57,311 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:52:57,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,317 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,320 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... [2018-11-28 12:52:57,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:52:57,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:52:57,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:52:57,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:52:57,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/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 12:52:57,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:52:57,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:52:57,460 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:52:57,460 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 12:52:57,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:52:57 BoogieIcfgContainer [2018-11-28 12:52:57,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:52:57,461 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:52:57,461 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:52:57,463 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:52:57,464 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:52:57,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:52:57" (1/3) ... [2018-11-28 12:52:57,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e0c8c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:52:57, skipping insertion in model container [2018-11-28 12:52:57,465 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:52:57,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:52:57" (2/3) ... [2018-11-28 12:52:57,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e0c8c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:52:57, skipping insertion in model container [2018-11-28 12:52:57,465 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:52:57,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:52:57" (3/3) ... [2018-11-28 12:52:57,467 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_03_false-termination_true-no-overflow.c [2018-11-28 12:52:57,502 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:52:57,503 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:52:57,503 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:52:57,503 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:52:57,503 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:52:57,503 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:52:57,503 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:52:57,503 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:52:57,503 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:52:57,511 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:52:57,524 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:52:57,524 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:52:57,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:52:57,528 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:52:57,528 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:52:57,528 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:52:57,528 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 12:52:57,528 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 12:52:57,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:52:57,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:52:57,529 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:52:57,529 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 12:52:57,533 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 8#L10-2true [2018-11-28 12:52:57,534 INFO L796 eck$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 := main_~i~0; 8#L10-2true [2018-11-28 12:52:57,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:57,538 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:52:57,539 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:57,539 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:57,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:57,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:57,595 INFO L82 PathProgramCache]: Analyzing trace with hash 39951, now seen corresponding path program 1 times [2018-11-28 12:52:57,595 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:57,595 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:57,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:57,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:52:57,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:52:57,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:52:57,633 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:52:57,637 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 12:52:57,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:52:57,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:52:57,652 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-11-28 12:52:57,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:52:57,663 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2018-11-28 12:52:57,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:52:57,665 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-28 12:52:57,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 12:52:57,668 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2018-11-28 12:52:57,668 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 12:52:57,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 12:52:57,669 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2018-11-28 12:52:57,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:52:57,669 INFO L705 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 12:52:57,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2018-11-28 12:52:57,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-11-28 12:52:57,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 12:52:57,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2018-11-28 12:52:57,690 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 12:52:57,690 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 12:52:57,690 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:52:57,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2018-11-28 12:52:57,690 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 12:52:57,690 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:52:57,690 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:52:57,690 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:52:57,690 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-28 12:52:57,691 INFO L794 eck$LassoCheckResult]: Stem: 28#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := 0; 29#L10-2 [2018-11-28 12:52:57,691 INFO L796 eck$LassoCheckResult]: Loop: 29#L10-2 assume !!(main_~i~0 < 100);main_~j~0 := 0; 26#L12-2 assume !!(main_~j~0 < 1);main_~j~0 := 1 + main_~j~0; 27#L12-2 assume !(main_~j~0 < 1); 30#L12-3 main_~i~0 := main_~i~0; 29#L10-2 [2018-11-28 12:52:57,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:57,691 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 12:52:57,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:57,691 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:57,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:57,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:57,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1240240, now seen corresponding path program 1 times [2018-11-28 12:52:57,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:57,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:57,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,697 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 12:52:57,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:52:57,706 INFO L82 PathProgramCache]: Analyzing trace with hash 29869391, now seen corresponding path program 1 times [2018-11-28 12:52:57,706 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:52:57,706 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:52:57,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:52:57,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:52:57,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:52:57,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:52:57 BoogieIcfgContainer [2018-11-28 12:52:57,788 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:52:57,789 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:52:57,789 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:52:57,789 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:52:57,789 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:52:57" (3/4) ... [2018-11-28 12:52:57,791 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 12:52:57,813 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b426694c-4fa4-4b4b-9b18-d993784a4d43/bin-2019/uautomizer/witness.graphml [2018-11-28 12:52:57,813 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:52:57,814 INFO L168 Benchmark]: Toolchain (without parser) took 652.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 953.3 MB in the beginning and 1.1 GB in the end (delta: -125.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:57,814 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. [2018-11-28 12:52:57,815 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.84 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:57,815 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.37 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 942.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:57,816 INFO L168 Benchmark]: Boogie Preprocessor took 10.69 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:52:57,816 INFO L168 Benchmark]: RCFGBuilder took 139.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:57,816 INFO L168 Benchmark]: BuchiAutomizer took 327.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:57,817 INFO L168 Benchmark]: Witness Printer took 24.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:52:57,819 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 130.84 ms. Allocated memory is still 1.0 GB. Free memory was 953.3 MB in the beginning and 945.2 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 17.37 ms. Allocated memory is still 1.0 GB. Free memory was 945.2 MB in the beginning and 942.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.69 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 139.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -176.5 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 327.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 24.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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 5 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 5 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 8 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 4 SolverSat, 0 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: 10]: 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=1} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] i = 0 Loop: [L10] COND TRUE i < 100 [L11] j = 0 [L12] COND TRUE j < 1 [L13] j = j+1 [L12] COND FALSE !(j < 1) [L15] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...