./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/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 8d3fb7268073fcc251f9902f5b4913f30f169781 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-10-27 06:06:08,652 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:06:08,653 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:06:08,663 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:06:08,663 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:06:08,664 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:06:08,665 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:06:08,666 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:06:08,672 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:06:08,673 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:06:08,673 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:06:08,674 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:06:08,674 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:06:08,675 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:06:08,681 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:06:08,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:06:08,682 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:06:08,683 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:06:08,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:06:08,686 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:06:08,687 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:06:08,690 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:06:08,692 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:06:08,692 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:06:08,693 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:06:08,693 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:06:08,694 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:06:08,695 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:06:08,699 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:06:08,700 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:06:08,700 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:06:08,701 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:06:08,701 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:06:08,701 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:06:08,702 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:06:08,702 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:06:08,702 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:06:08,717 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:06:08,717 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:06:08,718 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:06:08,719 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:06:08,719 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:06:08,719 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:06:08,719 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:06:08,723 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:06:08,723 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:06:08,723 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:06:08,724 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:06:08,724 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:06:08,724 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:06:08,724 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:06:08,724 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:06:08,724 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:06:08,724 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:06:08,725 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:06:08,725 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:06:08,725 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:06:08,725 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:06:08,727 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:06:08,728 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:06:08,728 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:06:08,728 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:06:08,728 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:06:08,728 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:06:08,730 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:06:08,730 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_c335cfb9-35a7-4178-b616-8dba629371fe/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 -> 8d3fb7268073fcc251f9902f5b4913f30f169781 [2018-10-27 06:06:08,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:06:08,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:06:08,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:06:08,775 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:06:08,776 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:06:08,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c [2018-10-27 06:06:08,823 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/data/a2efabc9f/26eb9c0cf9c74b72a9c08bc33570e6e2/FLAGa6aed42b2 [2018-10-27 06:06:09,182 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:06:09,182 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c [2018-10-27 06:06:09,187 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/data/a2efabc9f/26eb9c0cf9c74b72a9c08bc33570e6e2/FLAGa6aed42b2 [2018-10-27 06:06:09,199 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/data/a2efabc9f/26eb9c0cf9c74b72a9c08bc33570e6e2 [2018-10-27 06:06:09,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:06:09,203 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:06:09,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:06:09,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:06:09,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:06:09,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250b1434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09, skipping insertion in model container [2018-10-27 06:06:09,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:06:09,236 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:06:09,359 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:06:09,363 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:06:09,378 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:06:09,390 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:06:09,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09 WrapperNode [2018-10-27 06:06:09,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:06:09,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:06:09,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:06:09,392 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:06:09,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:06:09,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:06:09,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:06:09,421 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:06:09,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,438 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... [2018-10-27 06:06:09,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:06:09,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:06:09,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:06:09,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:06:09,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/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 [2018-10-27 06:06:09,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:06:09,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:06:09,900 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:06:09,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:06:09 BoogieIcfgContainer [2018-10-27 06:06:09,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:06:09,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:06:09,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:06:09,906 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:06:09,907 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:06:09,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:06:09" (1/3) ... [2018-10-27 06:06:09,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c61504d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:06:09, skipping insertion in model container [2018-10-27 06:06:09,908 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:06:09,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:06:09" (2/3) ... [2018-10-27 06:06:09,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c61504d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:06:09, skipping insertion in model container [2018-10-27 06:06:09,909 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:06:09,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:06:09" (3/3) ... [2018-10-27 06:06:09,910 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_04_false-termination_true-no-overflow.c [2018-10-27 06:06:09,966 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:06:09,967 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:06:09,967 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:06:09,967 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:06:09,967 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:06:09,968 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:06:09,968 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:06:09,968 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:06:09,968 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:06:09,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-10-27 06:06:10,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-10-27 06:06:10,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:10,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:10,013 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:06:10,013 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:06:10,014 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:06:10,014 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-10-27 06:06:10,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-10-27 06:06:10,016 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:10,016 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:10,016 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:06:10,016 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:06:10,024 INFO L793 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 17#L15-3true [2018-10-27 06:06:10,025 INFO L795 eck$LassoCheckResult]: Loop: 17#L15-3true assume true; 21#L15-1true assume !!(main_~i~0 < 100);main_~a~0 := main_~i~0 + 2;main_~j~0 := 0; 3#L18-3true assume !true; 22#L18-4true main_~i~0 := main_~i~0 + 1; 17#L15-3true [2018-10-27 06:06:10,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:10,031 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-10-27 06:06:10,033 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:10,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:10,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:10,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:10,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:10,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1115913, now seen corresponding path program 1 times [2018-10-27 06:06:10,121 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:10,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:10,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:10,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:10,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:10,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:06:10,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:06:10,162 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:06:10,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 06:06:10,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 06:06:10,180 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-10-27 06:06:10,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:06:10,188 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2018-10-27 06:06:10,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:06:10,190 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2018-10-27 06:06:10,192 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-10-27 06:06:10,196 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 20 transitions. [2018-10-27 06:06:10,197 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-10-27 06:06:10,197 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-10-27 06:06:10,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2018-10-27 06:06:10,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:10,199 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-10-27 06:06:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2018-10-27 06:06:10,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-10-27 06:06:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-10-27 06:06:10,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-10-27 06:06:10,224 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-10-27 06:06:10,224 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-10-27 06:06:10,225 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:06:10,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2018-10-27 06:06:10,225 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-10-27 06:06:10,226 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:10,226 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:10,226 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:06:10,226 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-10-27 06:06:10,226 INFO L793 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 57#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 58#L15-3 [2018-10-27 06:06:10,226 INFO L795 eck$LassoCheckResult]: Loop: 58#L15-3 assume true; 63#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := main_~i~0 + 2;main_~j~0 := 0; 48#L18-3 assume true; 49#L18-1 assume !(main_~j~0 < main_~a~0); 51#L18-4 main_~i~0 := main_~i~0 + 1; 58#L15-3 [2018-10-27 06:06:10,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:10,227 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-10-27 06:06:10,227 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:10,227 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:10,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:10,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:10,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:10,234 INFO L82 PathProgramCache]: Analyzing trace with hash 34543833, now seen corresponding path program 1 times [2018-10-27 06:06:10,234 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:10,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:10,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,237 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:06:10,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:10,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:10,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983319, now seen corresponding path program 1 times [2018-10-27 06:06:10,247 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:10,247 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:10,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:10,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:10,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:10,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:06:10,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 06:06:10,408 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:06:10,409 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:06:10,409 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:06:10,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:06:10,410 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:06:10,410 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:10,410 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:06:10,410 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:06:10,410 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_04_false-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:06:10,410 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:06:10,410 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:06:10,429 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:10,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:10,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:10,742 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-27 06:06:10,748 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:06:10,748 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-10-27 06:06:10,758 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:06:10,758 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:10,783 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:06:10,784 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/z3 Starting monitored process 3 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:10,788 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:06:10,788 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:06:10,807 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:06:10,807 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/z3 Starting monitored process 4 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:10,813 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:06:10,814 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/z3 Starting monitored process 5 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:10,839 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:06:10,839 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:06:11,198 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:06:11,200 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:06:11,200 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:06:11,200 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:06:11,200 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:06:11,200 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:06:11,200 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:06:11,201 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:06:11,201 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:06:11,201 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_04_false-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:06:11,201 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:06:11,201 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:06:11,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:11,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:11,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:06:11,403 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:06:11,406 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:06:11,408 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:06:11,409 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:11,409 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:11,409 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:11,409 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:11,412 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:06:11,413 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:06:11,419 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:11,422 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:06:11,423 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:11,423 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:11,423 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:11,423 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:11,424 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:06:11,424 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:06:11,433 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:06:11,433 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:06:11,434 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:06:11,434 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:06:11,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:06:11,435 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:06:11,435 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:06:11,437 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:06:11,437 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:06:11,446 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:06:11,451 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:06:11,451 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:06:11,453 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:06:11,453 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:06:11,454 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:06:11,454 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-10-27 06:06:11,455 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:06:11,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:11,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:11,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:06:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:11,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:06:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:11,575 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-10-27 06:06:11,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand 5 states. [2018-10-27 06:06:11,805 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 57 states and 74 transitions. Complement of second has 8 states. [2018-10-27 06:06:11,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-10-27 06:06:11,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:06:11,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-10-27 06:06:11,809 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 5 letters. [2018-10-27 06:06:11,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:06:11,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 7 letters. Loop has 5 letters. [2018-10-27 06:06:11,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:06:11,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 10 letters. [2018-10-27 06:06:11,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:06:11,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 74 transitions. [2018-10-27 06:06:11,812 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-10-27 06:06:11,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 56 states and 73 transitions. [2018-10-27 06:06:11,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-10-27 06:06:11,814 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2018-10-27 06:06:11,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 73 transitions. [2018-10-27 06:06:11,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:06:11,814 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 73 transitions. [2018-10-27 06:06:11,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 73 transitions. [2018-10-27 06:06:11,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2018-10-27 06:06:11,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-27 06:06:11,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2018-10-27 06:06:11,819 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-10-27 06:06:11,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:06:11,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:06:11,820 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 4 states. [2018-10-27 06:06:11,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:06:11,883 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2018-10-27 06:06:11,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 06:06:11,884 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 68 transitions. [2018-10-27 06:06:11,885 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-10-27 06:06:11,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 28 states and 35 transitions. [2018-10-27 06:06:11,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-10-27 06:06:11,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-10-27 06:06:11,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2018-10-27 06:06:11,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:11,887 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-10-27 06:06:11,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2018-10-27 06:06:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2018-10-27 06:06:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 06:06:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2018-10-27 06:06:11,890 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-10-27 06:06:11,890 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-10-27 06:06:11,890 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:06:11,890 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2018-10-27 06:06:11,891 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-10-27 06:06:11,891 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:11,891 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:11,891 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:06:11,892 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:06:11,892 INFO L793 eck$LassoCheckResult]: Stem: 276#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 274#L15-3 [2018-10-27 06:06:11,892 INFO L795 eck$LassoCheckResult]: Loop: 274#L15-3 assume true; 279#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := main_~i~0 + 2;main_~j~0 := 0; 264#L18-3 assume true; 265#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := main_~i~0 + main_~j~0 + 3; 268#L20-3 assume true; 269#L20-1 assume !(main_~k~0 >= 0); 266#L20-4 main_~j~0 := main_~j~0 + 1; 267#L18-3 assume true; 281#L18-1 assume !(main_~j~0 < main_~a~0); 280#L18-4 main_~i~0 := main_~i~0 + 1; 274#L15-3 [2018-10-27 06:06:11,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:11,892 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-10-27 06:06:11,892 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:11,893 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:11,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:11,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:11,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:11,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:11,900 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:11,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2043710161, now seen corresponding path program 1 times [2018-10-27 06:06:11,901 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:11,901 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:11,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:11,902 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:06:11,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:11,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:11,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:06:11,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 06:06:11,953 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:06:11,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:06:11,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:06:11,954 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-10-27 06:06:11,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:06:11,995 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2018-10-27 06:06:11,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 06:06:11,996 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-10-27 06:06:11,996 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2018-10-27 06:06:11,997 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 34 transitions. [2018-10-27 06:06:11,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-10-27 06:06:11,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-10-27 06:06:11,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 34 transitions. [2018-10-27 06:06:11,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:11,997 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2018-10-27 06:06:11,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 34 transitions. [2018-10-27 06:06:11,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2018-10-27 06:06:11,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-10-27 06:06:11,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2018-10-27 06:06:11,999 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-10-27 06:06:11,999 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-10-27 06:06:11,999 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:06:11,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2018-10-27 06:06:12,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2018-10-27 06:06:12,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:12,003 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:12,004 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:06:12,004 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:06:12,004 INFO L793 eck$LassoCheckResult]: Stem: 332#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 329#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 330#L15-3 [2018-10-27 06:06:12,004 INFO L795 eck$LassoCheckResult]: Loop: 330#L15-3 assume true; 335#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := main_~i~0 + 2;main_~j~0 := 0; 336#L18-3 assume true; 322#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := main_~i~0 + main_~j~0 + 3; 323#L20-3 assume true; 324#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := main_~i~0 + main_~j~0 + main_~k~0 + 4;main_~l~0 := 0; 325#L23-3 assume true; 328#L23-1 assume !(main_~l~0 < main_~b~0); 326#L23-4 main_~k~0 := main_~k~0 - 1; 327#L20-3 assume true; 338#L20-1 assume !(main_~k~0 >= 0); 321#L20-4 main_~j~0 := main_~j~0 + 1; 319#L18-3 assume true; 320#L18-1 assume !(main_~j~0 < main_~a~0); 337#L18-4 main_~i~0 := main_~i~0 + 1; 330#L15-3 [2018-10-27 06:06:12,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:12,005 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2018-10-27 06:06:12,005 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:12,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:12,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:12,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:12,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:12,009 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:12,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1977569929, now seen corresponding path program 1 times [2018-10-27 06:06:12,009 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:12,009 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:12,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,010 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:06:12,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:12,069 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:06:12,069 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:06:12,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:12,089 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:06:12,297 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:06:12,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:06:12,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2018-10-27 06:06:12,329 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:06:12,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 06:06:12,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-27 06:06:12,329 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. cyclomatic complexity: 5 Second operand 7 states. [2018-10-27 06:06:12,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:06:12,757 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2018-10-27 06:06:12,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 06:06:12,758 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 62 transitions. [2018-10-27 06:06:12,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2018-10-27 06:06:12,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 62 transitions. [2018-10-27 06:06:12,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2018-10-27 06:06:12,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2018-10-27 06:06:12,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 62 transitions. [2018-10-27 06:06:12,761 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:12,761 INFO L705 BuchiCegarLoop]: Abstraction has 51 states and 62 transitions. [2018-10-27 06:06:12,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 62 transitions. [2018-10-27 06:06:12,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 32. [2018-10-27 06:06:12,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-10-27 06:06:12,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-10-27 06:06:12,765 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-10-27 06:06:12,766 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-10-27 06:06:12,766 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:06:12,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2018-10-27 06:06:12,766 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2018-10-27 06:06:12,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:12,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:12,767 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:06:12,767 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:06:12,767 INFO L793 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 467#L15-3 [2018-10-27 06:06:12,768 INFO L795 eck$LassoCheckResult]: Loop: 467#L15-3 assume true; 473#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := main_~i~0 + 2;main_~j~0 := 0; 474#L18-3 assume true; 458#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := main_~i~0 + main_~j~0 + 3; 459#L20-3 assume true; 460#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := main_~i~0 + main_~j~0 + main_~k~0 + 4;main_~l~0 := 0; 486#L23-3 assume true; 485#L23-1 assume !!(main_~l~0 < main_~b~0);main_~m~0 := main_~i~0 + main_~j~0 + main_~k~0 + main_~l~0 + 1000; 480#L25-3 assume true; 483#L25-1 assume !(main_~m~0 >= 0); 482#L25-4 main_~l~0 := main_~l~0 + 1; 481#L23-3 assume true; 479#L23-1 assume !(main_~l~0 < main_~b~0); 463#L23-4 main_~k~0 := main_~k~0 - 1; 464#L20-3 assume true; 461#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := main_~i~0 + main_~j~0 + main_~k~0 + 4;main_~l~0 := 0; 462#L23-3 assume true; 465#L23-1 assume !!(main_~l~0 < main_~b~0);main_~m~0 := main_~i~0 + main_~j~0 + main_~k~0 + main_~l~0 + 1000; 471#L25-3 assume true; 472#L25-1 assume !(main_~m~0 >= 0); 468#L25-4 main_~l~0 := main_~l~0 + 1; 469#L23-3 assume true; 484#L23-1 assume !(main_~l~0 < main_~b~0); 478#L23-4 main_~k~0 := main_~k~0 - 1; 477#L20-3 assume true; 476#L20-1 assume !(main_~k~0 >= 0); 457#L20-4 main_~j~0 := main_~j~0 + 1; 455#L18-3 assume true; 456#L18-1 assume !(main_~j~0 < main_~a~0); 475#L18-4 main_~i~0 := main_~i~0 + 1; 467#L15-3 [2018-10-27 06:06:12,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:12,768 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2018-10-27 06:06:12,768 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:12,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:12,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:12,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:12,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:12,776 INFO L82 PathProgramCache]: Analyzing trace with hash -980587919, now seen corresponding path program 1 times [2018-10-27 06:06:12,776 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:12,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:12,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,778 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:06:12,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:12,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 06:06:12,879 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:06:12,879 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:06:12,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:12,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:06:12,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:06:12,977 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-27 06:06:12,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:06:12,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2018-10-27 06:06:12,995 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:06:12,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 06:06:12,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-10-27 06:06:12,995 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. cyclomatic complexity: 7 Second operand 8 states. [2018-10-27 06:06:13,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:06:13,037 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-10-27 06:06:13,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 06:06:13,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2018-10-27 06:06:13,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:06:13,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 12 transitions. [2018-10-27 06:06:13,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-10-27 06:06:13,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-10-27 06:06:13,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 12 transitions. [2018-10-27 06:06:13,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:06:13,040 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-27 06:06:13,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 12 transitions. [2018-10-27 06:06:13,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-27 06:06:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-27 06:06:13,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-10-27 06:06:13,041 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-27 06:06:13,041 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-10-27 06:06:13,041 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-10-27 06:06:13,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 12 transitions. [2018-10-27 06:06:13,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:06:13,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:06:13,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:06:13,042 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:06:13,042 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:06:13,042 INFO L793 eck$LassoCheckResult]: Stem: 603#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 599#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 600#L15-3 assume true; 609#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := main_~i~0 + 2;main_~j~0 := 0; 601#L18-3 assume true; 602#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := main_~i~0 + main_~j~0 + 3; 607#L20-3 assume true; 608#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := main_~i~0 + main_~j~0 + main_~k~0 + 4;main_~l~0 := 0; 610#L23-3 assume true; 604#L23-1 assume !!(main_~l~0 < main_~b~0);main_~m~0 := main_~i~0 + main_~j~0 + main_~k~0 + main_~l~0 + 1000; 605#L25-3 [2018-10-27 06:06:13,043 INFO L795 eck$LassoCheckResult]: Loop: 605#L25-3 assume true; 606#L25-1 assume !!(main_~m~0 >= 0);main_~m~0 := main_~m~0 - 0; 605#L25-3 [2018-10-27 06:06:13,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:13,043 INFO L82 PathProgramCache]: Analyzing trace with hash -1005632933, now seen corresponding path program 1 times [2018-10-27 06:06:13,043 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:13,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:13,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:13,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:13,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:13,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:13,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:13,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2439, now seen corresponding path program 1 times [2018-10-27 06:06:13,054 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:13,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:13,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:13,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:13,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:13,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:06:13,061 INFO L82 PathProgramCache]: Analyzing trace with hash -45605535, now seen corresponding path program 1 times [2018-10-27 06:06:13,062 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:06:13,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:06:13,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:13,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:06:13,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:06:13,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:13,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:06:13,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:06:13 BoogieIcfgContainer [2018-10-27 06:06:13,173 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:06:13,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:06:13,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:06:13,174 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:06:13,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:06:09" (3/4) ... [2018-10-27 06:06:13,178 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-10-27 06:06:13,223 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c335cfb9-35a7-4178-b616-8dba629371fe/bin-2019/uautomizer/witness.graphml [2018-10-27 06:06:13,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:06:13,224 INFO L168 Benchmark]: Toolchain (without parser) took 4021.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 954.4 MB in the beginning and 966.2 MB in the end (delta: -11.8 MB). Peak memory consumption was 163.8 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:13,225 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:06:13,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.42 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:13,225 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:06:13,226 INFO L168 Benchmark]: Boogie Preprocessor took 18.21 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:13,226 INFO L168 Benchmark]: RCFGBuilder took 461.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -218.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:13,227 INFO L168 Benchmark]: BuchiAutomizer took 3271.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 969.6 MB in the end (delta: 189.8 MB). Peak memory consumption was 189.8 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:13,227 INFO L168 Benchmark]: Witness Printer took 49.76 ms. Allocated memory is still 1.2 GB. Free memory was 969.6 MB in the beginning and 966.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-10-27 06:06:13,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.42 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.62 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.21 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 461.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 941.0 MB in the beginning and 1.2 GB in the end (delta: -218.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3271.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 969.6 MB in the end (delta: 189.8 MB). Peak memory consumption was 189.8 MB. Max. memory is 11.5 GB. * Witness Printer took 49.76 ms. Allocated memory is still 1.2 GB. Free memory was 969.6 MB in the beginning and 966.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 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 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 6 iterations. TraceHistogramMax:4. Analysis of lassos took 2.1s. Construction of modules took 0.4s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 56 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 4. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 87 SDtfs, 232 SDslu, 125 SDs, 0 SdLazy, 126 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf96 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq188 hnf91 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 25]: 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 {a=2, \result=0, b=7, m=1003, l=0, i=0, k=3, j=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 [L18] COND TRUE j < a [L19] k = i+j+3 [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...