./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:05:59,628 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:05:59,629 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:05:59,636 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:05:59,636 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:05:59,637 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:05:59,638 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:05:59,639 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:05:59,640 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:05:59,640 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:05:59,641 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:05:59,641 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:05:59,642 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:05:59,643 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:05:59,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:05:59,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:05:59,644 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:05:59,646 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:05:59,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:05:59,648 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:05:59,649 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:05:59,649 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:05:59,651 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:05:59,651 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:05:59,651 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:05:59,652 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:05:59,653 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:05:59,653 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:05:59,654 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:05:59,655 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:05:59,655 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:05:59,655 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:05:59,656 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:05:59,656 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:05:59,656 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:05:59,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:05:59,657 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 12:05:59,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:05:59,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:05:59,669 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:05:59,669 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:05:59,669 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:05:59,669 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:05:59,670 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:05:59,670 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:05:59,670 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:05:59,670 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:05:59,670 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:05:59,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:05:59,670 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:05:59,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:05:59,672 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:05:59,672 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:05:59,672 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:05:59,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:05:59,672 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:05:59,672 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:05:59,673 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:05:59,673 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_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2018-11-18 12:05:59,694 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:05:59,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:05:59,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:05:59,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:05:59,705 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:05:59,705 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-11-18 12:05:59,740 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/data/a75fe7f8e/48e60bae804f4ac7b6c9c240d52f43b7/FLAG25d394fd4 [2018-11-18 12:06:00,141 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:06:00,141 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-11-18 12:06:00,146 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/data/a75fe7f8e/48e60bae804f4ac7b6c9c240d52f43b7/FLAG25d394fd4 [2018-11-18 12:06:00,155 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/data/a75fe7f8e/48e60bae804f4ac7b6c9c240d52f43b7 [2018-11-18 12:06:00,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:06:00,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:06:00,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:00,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:06:00,162 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:06:00,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfef79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00, skipping insertion in model container [2018-11-18 12:06:00,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:06:00,185 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:06:00,285 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:00,287 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:06:00,296 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:06:00,304 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:06:00,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00 WrapperNode [2018-11-18 12:06:00,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:06:00,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:06:00,305 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:06:00,305 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:06:00,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:06:00,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:06:00,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:06:00,323 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:06:00,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... [2018-11-18 12:06:00,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:06:00,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:06:00,333 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:06:00,333 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:06:00,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:00,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:06:00,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:06:00,477 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:06:00,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:00 BoogieIcfgContainer [2018-11-18 12:06:00,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:06:00,477 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:06:00,477 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:06:00,479 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:06:00,480 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:06:00,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:06:00" (1/3) ... [2018-11-18 12:06:00,481 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@141e310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:06:00, skipping insertion in model container [2018-11-18 12:06:00,481 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:06:00,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:06:00" (2/3) ... [2018-11-18 12:06:00,481 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@141e310a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:06:00, skipping insertion in model container [2018-11-18 12:06:00,481 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:06:00,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:00" (3/3) ... [2018-11-18 12:06:00,483 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-11-18 12:06:00,516 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:06:00,517 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:06:00,517 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:06:00,517 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:06:00,517 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:06:00,517 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:06:00,517 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:06:00,517 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:06:00,517 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:06:00,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 12:06:00,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 12:06:00,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:00,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:00,543 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 12:06:00,543 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 12:06:00,543 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:06:00,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 12:06:00,544 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 12:06:00,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:00,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:00,544 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 12:06:00,544 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 12:06:00,549 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 13#L17-3true [2018-11-18 12:06:00,549 INFO L796 eck$LassoCheckResult]: Loop: 13#L17-3true assume true; 6#L17-1true assume !!(main_~i~0 < 5);main_~j~0 := 0; 7#L19-3true assume !true; 4#L19-4true main_~i~0 := 1 + main_~i~0; 13#L17-3true [2018-11-18 12:06:00,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:00,552 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 12:06:00,554 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:00,554 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:00,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:00,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,612 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:00,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-18 12:06:00,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:00,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:00,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:00,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:00,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:00,633 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:06:00,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:06:00,637 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:00,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:06:00,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:06:00,648 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-18 12:06:00,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:00,652 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-18 12:06:00,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:06:00,653 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-18 12:06:00,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 12:06:00,655 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-18 12:06:00,656 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 12:06:00,656 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 12:06:00,657 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-18 12:06:00,657 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:06:00,657 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 12:06:00,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-18 12:06:00,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-18 12:06:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 12:06:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-18 12:06:00,677 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 12:06:00,677 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 12:06:00,677 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:06:00,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-18 12:06:00,678 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 12:06:00,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:00,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:00,679 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 12:06:00,679 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 12:06:00,679 INFO L794 eck$LassoCheckResult]: Stem: 33#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 31#L17-3 [2018-11-18 12:06:00,679 INFO L796 eck$LassoCheckResult]: Loop: 31#L17-3 assume true; 34#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 35#L19-3 assume true; 36#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 32#L19-4 main_~i~0 := 1 + main_~i~0; 31#L17-3 [2018-11-18 12:06:00,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:00,679 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 12:06:00,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:00,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:00,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:00,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:00,684 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-18 12:06:00,684 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:00,685 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:00,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,686 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:00,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:00,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-11-18 12:06:00,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:00,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:00,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:00,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:00,763 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:00,764 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:00,764 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:00,764 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:00,764 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:06:00,764 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:00,765 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:00,765 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:00,765 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 12:06:00,765 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:00,765 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:00,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:00,786 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:00,794 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:00,799 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:00,882 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:00,882 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/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) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:00,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:00,889 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:00,907 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:00,908 INFO L448 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_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 [2018-11-18 12:06:00,914 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:00,914 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:00,930 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:00,930 INFO L448 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_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 [2018-11-18 12:06:00,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:00,938 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 [2018-11-18 12:06:00,967 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:06:00,967 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:00,987 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:06:00,988 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:00,988 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:00,988 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:00,989 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:00,989 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:06:00,989 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:00,989 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:00,989 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:00,989 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 12:06:00,989 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:00,989 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:00,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:01,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:01,014 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:01,016 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:01,060 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:01,063 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:06:01,064 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 [2018-11-18 12:06:01,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:01,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:01,066 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:01,066 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:01,066 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:01,067 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:01,067 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:01,069 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:01,069 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 [2018-11-18 12:06:01,069 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:01,070 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:01,070 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:01,070 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:01,071 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:06:01,071 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:06:01,074 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:01,075 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 [2018-11-18 12:06:01,075 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:01,075 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:01,076 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:01,076 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:01,077 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:06:01,078 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:06:01,083 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:01,084 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 [2018-11-18 12:06:01,084 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:01,084 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:01,085 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:01,085 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:01,085 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:01,085 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:01,087 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:01,091 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:06:01,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:06:01,095 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 12:06:01,096 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:06:01,096 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:06:01,097 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:06:01,097 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 5 Supporting invariants [] [2018-11-18 12:06:01,098 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:06:01,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,134 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,140 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,173 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 [2018-11-18 12:06:01,174 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 5 states. [2018-11-18 12:06:01,214 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 21 states and 26 transitions. Complement of second has 8 states. [2018-11-18 12:06:01,214 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 [2018-11-18 12:06:01,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 12:06:01,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-18 12:06:01,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-18 12:06:01,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:01,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-18 12:06:01,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:01,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-18 12:06:01,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:01,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 26 transitions. [2018-11-18 12:06:01,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 12:06:01,220 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 20 states and 25 transitions. [2018-11-18 12:06:01,220 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 12:06:01,220 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 12:06:01,220 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2018-11-18 12:06:01,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:01,220 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-11-18 12:06:01,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2018-11-18 12:06:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-11-18 12:06:01,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 12:06:01,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2018-11-18 12:06:01,222 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2018-11-18 12:06:01,222 INFO L608 BuchiCegarLoop]: Abstraction has 19 states and 24 transitions. [2018-11-18 12:06:01,222 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:06:01,222 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 19 states and 24 transitions. [2018-11-18 12:06:01,223 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2018-11-18 12:06:01,223 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:01,223 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:01,223 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:01,223 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2018-11-18 12:06:01,223 INFO L794 eck$LassoCheckResult]: Stem: 117#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 111#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 112#L17-3 assume true; 118#L17-1 [2018-11-18 12:06:01,223 INFO L796 eck$LassoCheckResult]: Loop: 118#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 113#L19-3 assume true; 114#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 120#L19-3 assume true; 123#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 107#L19-4 main_~i~0 := 1 + main_~i~0; 108#L17-3 assume true; 118#L17-1 [2018-11-18 12:06:01,224 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,224 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-18 12:06:01,224 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:01,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,227 INFO L82 PathProgramCache]: Analyzing trace with hash -13166815, now seen corresponding path program 1 times [2018-11-18 12:06:01,227 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,227 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:01,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:01,250 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 [2018-11-18 12:06:01,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:01,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,285 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:01,285 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-18 12:06:01,285 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:01,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 12:06:01,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 12:06:01,286 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-18 12:06:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:01,304 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2018-11-18 12:06:01,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 12:06:01,304 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2018-11-18 12:06:01,305 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2018-11-18 12:06:01,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 25 states and 30 transitions. [2018-11-18 12:06:01,305 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-18 12:06:01,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-18 12:06:01,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2018-11-18 12:06:01,306 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:01,306 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-11-18 12:06:01,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2018-11-18 12:06:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 23. [2018-11-18 12:06:01,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 12:06:01,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-11-18 12:06:01,307 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-18 12:06:01,307 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-18 12:06:01,308 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 12:06:01,308 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2018-11-18 12:06:01,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2018-11-18 12:06:01,308 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:01,308 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:01,309 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:01,309 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [3, 2, 1, 1, 1, 1] [2018-11-18 12:06:01,309 INFO L794 eck$LassoCheckResult]: Stem: 182#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 176#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 177#L17-3 assume true; 183#L17-1 [2018-11-18 12:06:01,309 INFO L796 eck$LassoCheckResult]: Loop: 183#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 184#L19-3 assume true; 187#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 190#L19-3 assume true; 195#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 194#L19-3 assume true; 193#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 178#L19-4 main_~i~0 := 1 + main_~i~0; 179#L17-3 assume true; 183#L17-1 [2018-11-18 12:06:01,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,309 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 2 times [2018-11-18 12:06:01,309 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,309 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:01,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,312 INFO L82 PathProgramCache]: Analyzing trace with hash 233156071, now seen corresponding path program 2 times [2018-11-18 12:06:01,312 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,312 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,313 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,341 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,341 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:01,341 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/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 [2018-11-18 12:06:01,347 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:01,351 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 12:06:01,351 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:01,352 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,373 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:01,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-11-18 12:06:01,373 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:01,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:06:01,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:06:01,374 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. cyclomatic complexity: 7 Second operand 5 states. [2018-11-18 12:06:01,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:01,395 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2018-11-18 12:06:01,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:06:01,396 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2018-11-18 12:06:01,397 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2018-11-18 12:06:01,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 29 states and 34 transitions. [2018-11-18 12:06:01,397 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-18 12:06:01,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-18 12:06:01,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 34 transitions. [2018-11-18 12:06:01,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:01,398 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2018-11-18 12:06:01,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 34 transitions. [2018-11-18 12:06:01,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2018-11-18 12:06:01,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 12:06:01,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2018-11-18 12:06:01,400 INFO L728 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-18 12:06:01,400 INFO L608 BuchiCegarLoop]: Abstraction has 27 states and 32 transitions. [2018-11-18 12:06:01,400 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 12:06:01,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 32 transitions. [2018-11-18 12:06:01,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2018-11-18 12:06:01,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:01,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:01,402 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:01,402 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [4, 3, 1, 1, 1, 1] [2018-11-18 12:06:01,402 INFO L794 eck$LassoCheckResult]: Stem: 266#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 264#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 265#L17-3 assume true; 267#L17-1 [2018-11-18 12:06:01,402 INFO L796 eck$LassoCheckResult]: Loop: 267#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 268#L19-3 assume true; 271#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 274#L19-3 assume true; 280#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 279#L19-3 assume true; 278#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 277#L19-3 assume true; 276#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 260#L19-4 main_~i~0 := 1 + main_~i~0; 261#L17-3 assume true; 267#L17-1 [2018-11-18 12:06:01,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,402 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 3 times [2018-11-18 12:06:01,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,404 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,407 INFO L82 PathProgramCache]: Analyzing trace with hash 726248237, now seen corresponding path program 3 times [2018-11-18 12:06:01,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,408 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:01,463 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:01,470 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:06:01,476 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-18 12:06:01,476 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:01,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,549 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:01,549 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-18 12:06:01,550 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:01,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 12:06:01,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-11-18 12:06:01,550 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. cyclomatic complexity: 7 Second operand 8 states. [2018-11-18 12:06:01,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:01,571 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-18 12:06:01,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:06:01,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 38 transitions. [2018-11-18 12:06:01,574 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2018-11-18 12:06:01,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 38 transitions. [2018-11-18 12:06:01,574 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-18 12:06:01,574 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-18 12:06:01,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 38 transitions. [2018-11-18 12:06:01,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:01,575 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-18 12:06:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 38 transitions. [2018-11-18 12:06:01,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2018-11-18 12:06:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-18 12:06:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2018-11-18 12:06:01,577 INFO L728 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2018-11-18 12:06:01,577 INFO L608 BuchiCegarLoop]: Abstraction has 31 states and 36 transitions. [2018-11-18 12:06:01,577 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 12:06:01,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 31 states and 36 transitions. [2018-11-18 12:06:01,577 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2018-11-18 12:06:01,577 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:01,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:01,578 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:01,578 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [5, 4, 1, 1, 1, 1] [2018-11-18 12:06:01,578 INFO L794 eck$LassoCheckResult]: Stem: 367#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 361#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 362#L17-3 assume true; 368#L17-1 [2018-11-18 12:06:01,578 INFO L796 eck$LassoCheckResult]: Loop: 368#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 369#L19-3 assume true; 372#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 375#L19-3 assume true; 384#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 383#L19-3 assume true; 382#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 381#L19-3 assume true; 380#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 379#L19-3 assume true; 378#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 363#L19-4 main_~i~0 := 1 + main_~i~0; 364#L17-3 assume true; 368#L17-1 [2018-11-18 12:06:01,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,579 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 4 times [2018-11-18 12:06:01,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,580 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,582 INFO L82 PathProgramCache]: Analyzing trace with hash 2141417203, now seen corresponding path program 4 times [2018-11-18 12:06:01,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,583 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:01,651 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:01,668 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-18 12:06:01,673 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-18 12:06:01,674 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:01,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,702 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:01,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2018-11-18 12:06:01,703 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:01,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 12:06:01,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 12:06:01,703 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. cyclomatic complexity: 7 Second operand 7 states. [2018-11-18 12:06:01,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:01,717 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2018-11-18 12:06:01,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 12:06:01,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 42 transitions. [2018-11-18 12:06:01,718 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2018-11-18 12:06:01,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 42 transitions. [2018-11-18 12:06:01,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2018-11-18 12:06:01,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-18 12:06:01,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 42 transitions. [2018-11-18 12:06:01,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:01,719 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 42 transitions. [2018-11-18 12:06:01,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 42 transitions. [2018-11-18 12:06:01,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2018-11-18 12:06:01,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2018-11-18 12:06:01,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2018-11-18 12:06:01,721 INFO L728 BuchiCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-11-18 12:06:01,721 INFO L608 BuchiCegarLoop]: Abstraction has 35 states and 40 transitions. [2018-11-18 12:06:01,721 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-18 12:06:01,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 40 transitions. [2018-11-18 12:06:01,722 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 15 [2018-11-18 12:06:01,722 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:01,722 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:01,722 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:01,722 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [6, 5, 1, 1, 1, 1] [2018-11-18 12:06:01,722 INFO L794 eck$LassoCheckResult]: Stem: 488#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 479#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 480#L17-3 assume true; 485#L17-1 [2018-11-18 12:06:01,722 INFO L796 eck$LassoCheckResult]: Loop: 485#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 481#L19-3 assume true; 482#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 489#L19-3 assume true; 500#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 499#L19-3 assume true; 498#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 497#L19-3 assume true; 496#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 495#L19-3 assume true; 494#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 493#L19-3 assume true; 492#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 475#L19-4 main_~i~0 := 1 + main_~i~0; 476#L17-3 assume true; 485#L17-1 [2018-11-18 12:06:01,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,723 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 5 times [2018-11-18 12:06:01,723 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,723 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,724 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,726 INFO L82 PathProgramCache]: Analyzing trace with hash 614160697, now seen corresponding path program 5 times [2018-11-18 12:06:01,726 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,726 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,727 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,782 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:01,782 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:01,788 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-18 12:06:01,794 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-18 12:06:01,794 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:01,795 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,846 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:01,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2018-11-18 12:06:01,847 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:01,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:06:01,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:06:01,848 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. cyclomatic complexity: 7 Second operand 10 states. [2018-11-18 12:06:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:01,874 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2018-11-18 12:06:01,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 12:06:01,875 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 46 transitions. [2018-11-18 12:06:01,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-11-18 12:06:01,876 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 46 transitions. [2018-11-18 12:06:01,876 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-18 12:06:01,876 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2018-11-18 12:06:01,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 46 transitions. [2018-11-18 12:06:01,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:01,876 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 46 transitions. [2018-11-18 12:06:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 46 transitions. [2018-11-18 12:06:01,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2018-11-18 12:06:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-11-18 12:06:01,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 44 transitions. [2018-11-18 12:06:01,878 INFO L728 BuchiCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-18 12:06:01,878 INFO L608 BuchiCegarLoop]: Abstraction has 39 states and 44 transitions. [2018-11-18 12:06:01,878 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-18 12:06:01,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 44 transitions. [2018-11-18 12:06:01,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2018-11-18 12:06:01,879 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:01,879 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:01,879 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:01,879 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [7, 6, 1, 1, 1, 1] [2018-11-18 12:06:01,879 INFO L794 eck$LassoCheckResult]: Stem: 619#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 610#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 611#L17-3 assume true; 616#L17-1 [2018-11-18 12:06:01,879 INFO L796 eck$LassoCheckResult]: Loop: 616#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 612#L19-3 assume true; 613#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 620#L19-3 assume true; 633#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 632#L19-3 assume true; 631#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 630#L19-3 assume true; 629#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 628#L19-3 assume true; 627#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 626#L19-3 assume true; 625#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 624#L19-3 assume true; 623#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 606#L19-4 main_~i~0 := 1 + main_~i~0; 607#L17-3 assume true; 616#L17-1 [2018-11-18 12:06:01,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,879 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 6 times [2018-11-18 12:06:01,880 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,880 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,881 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:01,882 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:01,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1799473663, now seen corresponding path program 6 times [2018-11-18 12:06:01,882 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:01,882 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:01,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,883 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:01,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:01,954 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:01,954 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:01,960 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-18 12:06:01,966 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-11-18 12:06:01,966 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:01,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,006 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:02,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2018-11-18 12:06:02,006 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:02,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:06:02,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:06:02,007 INFO L87 Difference]: Start difference. First operand 39 states and 44 transitions. cyclomatic complexity: 7 Second operand 11 states. [2018-11-18 12:06:02,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:02,020 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2018-11-18 12:06:02,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 12:06:02,020 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 50 transitions. [2018-11-18 12:06:02,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2018-11-18 12:06:02,021 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 50 transitions. [2018-11-18 12:06:02,021 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 23 [2018-11-18 12:06:02,022 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-18 12:06:02,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 50 transitions. [2018-11-18 12:06:02,022 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:02,022 INFO L705 BuchiCegarLoop]: Abstraction has 45 states and 50 transitions. [2018-11-18 12:06:02,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 50 transitions. [2018-11-18 12:06:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-11-18 12:06:02,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 12:06:02,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-11-18 12:06:02,024 INFO L728 BuchiCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-11-18 12:06:02,024 INFO L608 BuchiCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-11-18 12:06:02,024 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-18 12:06:02,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 43 states and 48 transitions. [2018-11-18 12:06:02,025 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 19 [2018-11-18 12:06:02,025 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:02,025 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:02,025 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:02,025 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [8, 7, 1, 1, 1, 1] [2018-11-18 12:06:02,025 INFO L794 eck$LassoCheckResult]: Stem: 758#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 752#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 753#L17-3 assume true; 759#L17-1 [2018-11-18 12:06:02,026 INFO L796 eck$LassoCheckResult]: Loop: 759#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 760#L19-3 assume true; 763#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 766#L19-3 assume true; 781#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 780#L19-3 assume true; 779#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 778#L19-3 assume true; 777#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 776#L19-3 assume true; 775#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 774#L19-3 assume true; 773#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 772#L19-3 assume true; 771#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 770#L19-3 assume true; 769#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 754#L19-4 main_~i~0 := 1 + main_~i~0; 755#L17-3 assume true; 759#L17-1 [2018-11-18 12:06:02,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 7 times [2018-11-18 12:06:02,026 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,026 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,027 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1576066747, now seen corresponding path program 7 times [2018-11-18 12:06:02,029 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:02,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,104 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:02,104 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:02,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:02,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:02,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,159 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:02,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2018-11-18 12:06:02,160 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:02,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 12:06:02,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:06:02,160 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. cyclomatic complexity: 7 Second operand 10 states. [2018-11-18 12:06:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:02,196 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2018-11-18 12:06:02,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 12:06:02,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 49 states and 54 transitions. [2018-11-18 12:06:02,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2018-11-18 12:06:02,197 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 49 states to 49 states and 54 transitions. [2018-11-18 12:06:02,198 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2018-11-18 12:06:02,198 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2018-11-18 12:06:02,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 54 transitions. [2018-11-18 12:06:02,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:02,198 INFO L705 BuchiCegarLoop]: Abstraction has 49 states and 54 transitions. [2018-11-18 12:06:02,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 54 transitions. [2018-11-18 12:06:02,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-11-18 12:06:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 12:06:02,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2018-11-18 12:06:02,201 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-11-18 12:06:02,201 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 52 transitions. [2018-11-18 12:06:02,201 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-18 12:06:02,202 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 52 transitions. [2018-11-18 12:06:02,202 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 21 [2018-11-18 12:06:02,202 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:02,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:02,202 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:02,202 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [9, 8, 1, 1, 1, 1] [2018-11-18 12:06:02,203 INFO L794 eck$LassoCheckResult]: Stem: 921#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 915#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 916#L17-3 assume true; 922#L17-1 [2018-11-18 12:06:02,203 INFO L796 eck$LassoCheckResult]: Loop: 922#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 917#L19-3 assume true; 918#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 925#L19-3 assume true; 941#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 940#L19-3 assume true; 939#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 938#L19-3 assume true; 937#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 936#L19-3 assume true; 935#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 934#L19-3 assume true; 933#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 932#L19-3 assume true; 931#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 930#L19-3 assume true; 929#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 928#L19-3 assume true; 927#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 911#L19-4 main_~i~0 := 1 + main_~i~0; 912#L17-3 assume true; 922#L17-1 [2018-11-18 12:06:02,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,203 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 8 times [2018-11-18 12:06:02,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:02,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1524875019, now seen corresponding path program 8 times [2018-11-18 12:06:02,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,207 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:02,276 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,276 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:02,276 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:02,287 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-18 12:06:02,292 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-18 12:06:02,292 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:02,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:02,301 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,316 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:02,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2018-11-18 12:06:02,317 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:02,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-18 12:06:02,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2018-11-18 12:06:02,317 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. cyclomatic complexity: 7 Second operand 11 states. [2018-11-18 12:06:02,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:02,341 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2018-11-18 12:06:02,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 12:06:02,342 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 58 transitions. [2018-11-18 12:06:02,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2018-11-18 12:06:02,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 53 states and 58 transitions. [2018-11-18 12:06:02,343 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 27 [2018-11-18 12:06:02,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 27 [2018-11-18 12:06:02,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 53 states and 58 transitions. [2018-11-18 12:06:02,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:02,343 INFO L705 BuchiCegarLoop]: Abstraction has 53 states and 58 transitions. [2018-11-18 12:06:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states and 58 transitions. [2018-11-18 12:06:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2018-11-18 12:06:02,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-11-18 12:06:02,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2018-11-18 12:06:02,345 INFO L728 BuchiCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-11-18 12:06:02,345 INFO L608 BuchiCegarLoop]: Abstraction has 51 states and 56 transitions. [2018-11-18 12:06:02,345 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-18 12:06:02,345 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 51 states and 56 transitions. [2018-11-18 12:06:02,345 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 23 [2018-11-18 12:06:02,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:02,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:02,346 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:02,346 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [10, 9, 1, 1, 1, 1] [2018-11-18 12:06:02,346 INFO L794 eck$LassoCheckResult]: Stem: 1091#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1085#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 1086#L17-3 assume true; 1092#L17-1 [2018-11-18 12:06:02,346 INFO L796 eck$LassoCheckResult]: Loop: 1092#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 1093#L19-3 assume true; 1096#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1099#L19-3 assume true; 1118#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1117#L19-3 assume true; 1116#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1115#L19-3 assume true; 1114#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1113#L19-3 assume true; 1112#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1111#L19-3 assume true; 1110#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1109#L19-3 assume true; 1108#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1107#L19-3 assume true; 1106#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1105#L19-3 assume true; 1104#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1103#L19-3 assume true; 1102#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 1087#L19-4 main_~i~0 := 1 + main_~i~0; 1088#L17-3 assume true; 1092#L17-1 [2018-11-18 12:06:02,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,347 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 9 times [2018-11-18 12:06:02,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,348 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,349 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,350 INFO L82 PathProgramCache]: Analyzing trace with hash 822608721, now seen corresponding path program 9 times [2018-11-18 12:06:02,350 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,350 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,351 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:02,444 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,445 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:06:02,445 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:06:02,455 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-18 12:06:02,464 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2018-11-18 12:06:02,464 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-18 12:06:02,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:02,540 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 12:06:02,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2018-11-18 12:06:02,541 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:06:02,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-18 12:06:02,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=235, Unknown=0, NotChecked=0, Total=380 [2018-11-18 12:06:02,541 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. cyclomatic complexity: 7 Second operand 20 states. [2018-11-18 12:06:02,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:06:02,574 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-11-18 12:06:02,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-18 12:06:02,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 62 transitions. [2018-11-18 12:06:02,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-18 12:06:02,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 57 states and 62 transitions. [2018-11-18 12:06:02,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-18 12:06:02,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2018-11-18 12:06:02,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 62 transitions. [2018-11-18 12:06:02,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:02,576 INFO L705 BuchiCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-11-18 12:06:02,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states and 62 transitions. [2018-11-18 12:06:02,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2018-11-18 12:06:02,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 12:06:02,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 60 transitions. [2018-11-18 12:06:02,579 INFO L728 BuchiCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-11-18 12:06:02,579 INFO L608 BuchiCegarLoop]: Abstraction has 55 states and 60 transitions. [2018-11-18 12:06:02,579 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-18 12:06:02,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 55 states and 60 transitions. [2018-11-18 12:06:02,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-18 12:06:02,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:02,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:02,580 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 12:06:02,580 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [11, 10, 1, 1, 1, 1] [2018-11-18 12:06:02,580 INFO L794 eck$LassoCheckResult]: Stem: 1288#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1282#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 1283#L17-3 assume true; 1289#L17-1 [2018-11-18 12:06:02,580 INFO L796 eck$LassoCheckResult]: Loop: 1289#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 1290#L19-3 assume true; 1293#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1296#L19-3 assume true; 1317#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1316#L19-3 assume true; 1315#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1314#L19-3 assume true; 1313#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1312#L19-3 assume true; 1311#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1310#L19-3 assume true; 1309#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1308#L19-3 assume true; 1307#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1306#L19-3 assume true; 1305#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1304#L19-3 assume true; 1303#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1302#L19-3 assume true; 1301#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1300#L19-3 assume true; 1299#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 1284#L19-4 main_~i~0 := 1 + main_~i~0; 1285#L17-3 assume true; 1289#L17-1 [2018-11-18 12:06:02,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,580 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 10 times [2018-11-18 12:06:02,580 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,580 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,581 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,583 INFO L82 PathProgramCache]: Analyzing trace with hash 254561815, now seen corresponding path program 10 times [2018-11-18 12:06:02,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,584 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1268976715, now seen corresponding path program 1 times [2018-11-18 12:06:02,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,592 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:02,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,686 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:02,686 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:02,686 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:02,686 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:02,686 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:06:02,686 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,686 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:02,686 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:02,686 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration12_Loop [2018-11-18 12:06:02,686 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:02,686 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:02,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,691 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,724 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:02,724 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,730 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:02,731 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:02,755 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:02,755 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:02,759 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:02,761 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:02,761 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=10} Honda state: {ULTIMATE.start_main_~j~0=10} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,777 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:02,777 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:02,792 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:02,792 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,794 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:02,794 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,811 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:06:02,811 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:02,817 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:06:02,831 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:02,831 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:02,831 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:02,831 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:02,831 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:06:02,831 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,831 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:02,831 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:02,831 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration12_Loop [2018-11-18 12:06:02,831 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:02,831 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:02,832 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,840 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,841 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,865 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:02,866 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:06:02,866 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 [2018-11-18 12:06:02,866 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:02,867 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:02,867 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:02,867 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:02,867 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:02,867 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:02,867 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:02,869 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:02,869 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 [2018-11-18 12:06:02,869 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:02,870 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:02,870 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:02,870 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:02,871 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:06:02,871 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:06:02,872 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:02,872 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 [2018-11-18 12:06:02,873 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:02,873 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:02,873 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:02,873 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:02,873 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:02,873 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:02,873 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:02,875 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:06:02,876 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:06:02,876 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 12:06:02,876 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:06:02,876 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:06:02,876 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:06:02,877 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2018-11-18 12:06:02,877 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:06:02,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:02,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:02,904 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:02,942 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-11-18 12:06:02,942 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 [2018-11-18 12:06:02,942 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 55 states and 60 transitions. cyclomatic complexity: 7 Second operand 4 states. [2018-11-18 12:06:02,953 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 55 states and 60 transitions. cyclomatic complexity: 7. Second operand 4 states. Result 109 states and 120 transitions. Complement of second has 6 states. [2018-11-18 12:06:02,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 12:06:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 12:06:02,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-18 12:06:02,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 25 letters. [2018-11-18 12:06:02,955 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:02,955 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 28 letters. Loop has 25 letters. [2018-11-18 12:06:02,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:02,956 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 3 letters. Loop has 50 letters. [2018-11-18 12:06:02,956 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:02,956 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 109 states and 120 transitions. [2018-11-18 12:06:02,958 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 12:06:02,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 109 states to 83 states and 91 transitions. [2018-11-18 12:06:02,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-18 12:06:02,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-18 12:06:02,959 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 91 transitions. [2018-11-18 12:06:02,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:02,959 INFO L705 BuchiCegarLoop]: Abstraction has 83 states and 91 transitions. [2018-11-18 12:06:02,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 91 transitions. [2018-11-18 12:06:02,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 60. [2018-11-18 12:06:02,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-11-18 12:06:02,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 68 transitions. [2018-11-18 12:06:02,964 INFO L728 BuchiCegarLoop]: Abstraction has 60 states and 68 transitions. [2018-11-18 12:06:02,964 INFO L608 BuchiCegarLoop]: Abstraction has 60 states and 68 transitions. [2018-11-18 12:06:02,964 INFO L442 BuchiCegarLoop]: ======== Iteration 13============ [2018-11-18 12:06:02,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 68 transitions. [2018-11-18 12:06:02,964 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 12:06:02,964 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:02,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:02,965 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 12:06:02,965 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 12:06:02,965 INFO L794 eck$LassoCheckResult]: Stem: 1565#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1556#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 1557#L17-3 assume true; 1568#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 1558#L19-3 [2018-11-18 12:06:02,965 INFO L796 eck$LassoCheckResult]: Loop: 1558#L19-3 assume true; 1559#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1558#L19-3 [2018-11-18 12:06:02,965 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,965 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-18 12:06:02,965 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,965 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:02,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-18 12:06:02,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:02,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:02,971 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-18 12:06:02,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:02,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:02,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:02,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:02,981 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:02,981 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:02,981 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:02,981 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:02,981 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:06:02,981 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:02,981 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:02,981 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:02,982 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration13_Loop [2018-11-18 12:06:02,982 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:02,982 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:02,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:02,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,006 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:03,007 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,008 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,023 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:03,023 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=3} Honda state: {ULTIMATE.start_main_~i~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,031 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,031 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,046 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:03,046 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,052 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,052 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,069 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:06:03,069 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,085 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:06:03,087 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:03,087 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:03,087 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:03,087 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:03,087 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:06:03,087 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,087 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:03,087 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:03,087 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration13_Loop [2018-11-18 12:06:03,087 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:03,087 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:03,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,114 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:03,114 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:06:03,115 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 [2018-11-18 12:06:03,115 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,115 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:03,115 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,115 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,115 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,116 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:03,116 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:03,116 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:03,117 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 [2018-11-18 12:06:03,117 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,117 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,117 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,117 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,118 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:06:03,118 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:06:03,120 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:03,120 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 [2018-11-18 12:06:03,120 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,120 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:03,121 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,121 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,121 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,121 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:03,121 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:03,122 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:06:03,123 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:06:03,123 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 12:06:03,124 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:06:03,124 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:06:03,124 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:06:03,124 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2018-11-18 12:06:03,124 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:06:03,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,151 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:03,153 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 12:06:03,153 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 60 states and 68 transitions. cyclomatic complexity: 11 Second operand 3 states. [2018-11-18 12:06:03,159 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 60 states and 68 transitions. cyclomatic complexity: 11. Second operand 3 states. Result 151 states and 168 transitions. Complement of second has 5 states. [2018-11-18 12:06:03,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:06:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 12:06:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 12:06:03,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 12:06:03,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 12:06:03,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,161 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 12:06:03,161 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,162 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 151 states and 168 transitions. [2018-11-18 12:06:03,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 12:06:03,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 151 states to 118 states and 131 transitions. [2018-11-18 12:06:03,165 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 12:06:03,165 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-18 12:06:03,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 131 transitions. [2018-11-18 12:06:03,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 12:06:03,165 INFO L705 BuchiCegarLoop]: Abstraction has 118 states and 131 transitions. [2018-11-18 12:06:03,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 131 transitions. [2018-11-18 12:06:03,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 106. [2018-11-18 12:06:03,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2018-11-18 12:06:03,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 116 transitions. [2018-11-18 12:06:03,171 INFO L728 BuchiCegarLoop]: Abstraction has 106 states and 116 transitions. [2018-11-18 12:06:03,171 INFO L608 BuchiCegarLoop]: Abstraction has 106 states and 116 transitions. [2018-11-18 12:06:03,171 INFO L442 BuchiCegarLoop]: ======== Iteration 14============ [2018-11-18 12:06:03,171 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 116 transitions. [2018-11-18 12:06:03,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 12:06:03,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:06:03,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:06:03,172 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-18 12:06:03,172 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 12:06:03,172 INFO L794 eck$LassoCheckResult]: Stem: 1814#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1805#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0;havoc main_~i~0;havoc main_~j~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~j~0 := main_#t~nondet1;havoc main_#t~nondet1; 1806#L17-3 assume true; 1812#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 1813#L19-3 assume true; 1815#L19-1 assume !(main_~i~0 > 2 && main_~j~0 <= 9); 1816#L19-4 main_~i~0 := 1 + main_~i~0; 1821#L17-3 assume true; 1818#L17-1 assume !!(main_~i~0 < 5);main_~j~0 := 0; 1807#L19-3 [2018-11-18 12:06:03,172 INFO L796 eck$LassoCheckResult]: Loop: 1807#L19-3 assume true; 1808#L19-1 assume !!(main_~i~0 > 2 && main_~j~0 <= 9);main_~j~0 := 1 + main_~j~0; 1807#L19-3 [2018-11-18 12:06:03,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,172 INFO L82 PathProgramCache]: Analyzing trace with hash 383141811, now seen corresponding path program 2 times [2018-11-18 12:06:03,172 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:03,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:03,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:03,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:06:03,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:03,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-11-18 12:06:03,176 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:03,176 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:03,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:03,177 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:03,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:03,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1167906567, now seen corresponding path program 2 times [2018-11-18 12:06:03,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:06:03,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:06:03,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:03,188 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:06:03,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:06:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:06:03,199 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:03,199 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:03,199 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:03,199 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:03,199 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 12:06:03,199 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,199 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:03,199 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:03,199 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration14_Loop [2018-11-18 12:06:03,199 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:03,199 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:03,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,204 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,231 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:03,231 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,234 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,248 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:03,248 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=3} Honda state: {ULTIMATE.start_main_~i~0=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,251 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,251 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,266 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:03,266 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,269 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,269 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,286 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 12:06:03,286 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,289 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 12:06:03,289 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f450379b-0dd0-40cd-b0b9-154d47b0375a/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,306 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 12:06:03,306 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 12:06:03,322 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 12:06:03,323 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 12:06:03,323 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 12:06:03,324 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 12:06:03,324 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 12:06:03,324 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 12:06:03,324 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 12:06:03,324 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 12:06:03,324 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 12:06:03,324 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c_Iteration14_Loop [2018-11-18 12:06:03,324 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 12:06:03,324 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 12:06:03,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 12:06:03,349 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 12:06:03,349 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 12:06:03,350 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 [2018-11-18 12:06:03,350 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,350 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:03,350 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,350 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,350 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,351 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:03,351 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:03,353 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:03,353 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 [2018-11-18 12:06:03,353 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,354 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,354 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,354 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,354 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:06:03,355 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:06:03,356 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:03,356 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 [2018-11-18 12:06:03,357 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,357 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,357 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,358 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 12:06:03,358 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 12:06:03,359 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 12:06:03,359 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 [2018-11-18 12:06:03,359 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 12:06:03,359 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 12:06:03,359 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 12:06:03,360 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 12:06:03,360 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 12:06:03,360 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 12:06:03,360 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 12:06:03,361 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 12:06:03,362 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 12:06:03,362 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 12:06:03,362 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 12:06:03,362 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 12:06:03,363 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 12:06:03,363 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0) = -2*ULTIMATE.start_main_~j~0 + 19 Supporting invariants [] [2018-11-18 12:06:03,363 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 12:06:03,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:03,389 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 12:06:03,389 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 116 transitions. cyclomatic complexity: 15 Second operand 3 states. [2018-11-18 12:06:03,398 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 116 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 149 states and 166 transitions. Complement of second has 5 states. [2018-11-18 12:06:03,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:06:03,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 12:06:03,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 12:06:03,399 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 12:06:03,399 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,399 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 12:06:03,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,412 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:03,415 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 12:06:03,415 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 116 transitions. cyclomatic complexity: 15 Second operand 3 states. [2018-11-18 12:06:03,420 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 116 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 149 states and 166 transitions. Complement of second has 5 states. [2018-11-18 12:06:03,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:06:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 12:06:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 12:06:03,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 12:06:03,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,422 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 12:06:03,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:06:03,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,432 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:06:03,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:06:03,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:06:03,435 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 12:06:03,436 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 116 transitions. cyclomatic complexity: 15 Second operand 3 states. [2018-11-18 12:06:03,446 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 116 transitions. cyclomatic complexity: 15. Second operand 3 states. Result 163 states and 181 transitions. Complement of second has 4 states. [2018-11-18 12:06:03,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 12:06:03,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 12:06:03,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-11-18 12:06:03,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 12:06:03,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-18 12:06:03,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 12:06:03,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 12:06:03,448 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 163 states and 181 transitions. [2018-11-18 12:06:03,449 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 12:06:03,449 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 163 states to 0 states and 0 transitions. [2018-11-18 12:06:03,449 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 12:06:03,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 12:06:03,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 12:06:03,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:06:03,449 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:06:03,449 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:06:03,449 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:06:03,449 INFO L442 BuchiCegarLoop]: ======== Iteration 15============ [2018-11-18 12:06:03,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:06:03,450 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 12:06:03,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 12:06:03,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:06:03 BoogieIcfgContainer [2018-11-18 12:06:03,455 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:06:03,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:06:03,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:06:03,455 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:06:03,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:06:00" (3/4) ... [2018-11-18 12:06:03,457 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 12:06:03,457 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:06:03,458 INFO L168 Benchmark]: Toolchain (without parser) took 3300.60 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.8 MB). Free memory was 959.2 MB in the beginning and 973.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 208.0 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:03,458 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:06:03,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.71 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:03,459 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.11 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:03,460 INFO L168 Benchmark]: Boogie Preprocessor took 10.38 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:06:03,460 INFO L168 Benchmark]: RCFGBuilder took 143.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:03,460 INFO L168 Benchmark]: BuchiAutomizer took 2977.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 973.1 MB in the end (delta: 169.7 MB). Peak memory consumption was 232.6 MB. Max. memory is 11.5 GB. [2018-11-18 12:06:03,461 INFO L168 Benchmark]: Witness Printer took 2.42 ms. Allocated memory is still 1.3 GB. Free memory is still 973.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:06:03,463 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.71 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.11 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.38 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -197.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2977.19 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.9 MB). Free memory was 1.1 GB in the beginning and 973.1 MB in the end (delta: 169.7 MB). Peak memory consumption was 232.6 MB. Max. memory is 11.5 GB. * Witness Printer took 2.42 ms. Allocated memory is still 1.3 GB. Free memory is still 973.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 14 terminating modules (10 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * i + 5 and consists of 5 locations. One deterministic module has affine ranking function -2 * i + 9 and consists of 4 locations. One deterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * j + 19 and consists of 3 locations. 10 modules have a trivial ranking function, the largest among these consists of 20 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 15 iterations. TraceHistogramMax:11. Analysis of lassos took 2.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 12. Automata minimization 0.0s AutomataMinimizationTime, 13 MinimizatonAttempts, 54 StatesRemovedByMinimization, 12 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 106 states and ocurred in iteration 13. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 110/110 HoareTripleCheckerStatistics: 138 SDtfs, 88 SDslu, 240 SDs, 0 SdLazy, 338 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI10 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax182 hnf98 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq156 hnf93 smp100 dnf100 smp100 tf112 neg100 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 5ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...