./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8d3fb7268073fcc251f9902f5b4913f30f169781 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 09:14:36,228 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:14:36,228 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:14:36,234 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:14:36,234 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:14:36,235 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:14:36,236 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:14:36,237 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:14:36,239 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:14:36,239 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:14:36,240 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:14:36,240 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:14:36,241 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:14:36,241 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:14:36,242 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:14:36,242 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:14:36,243 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:14:36,244 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:14:36,245 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:14:36,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:14:36,247 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:14:36,248 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:14:36,250 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:14:36,250 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:14:36,250 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:14:36,251 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:14:36,251 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:14:36,252 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:14:36,252 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:14:36,253 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:14:36,253 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:14:36,254 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:14:36,254 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:14:36,254 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:14:36,254 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:14:36,255 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:14:36,255 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 09:14:36,263 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:14:36,263 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:14:36,264 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:14:36,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:14:36,265 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:14:36,265 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:14:36,265 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:14:36,265 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:14:36,265 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:14:36,265 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:14:36,265 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:14:36,266 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:14:36,266 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:14:36,267 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:14:36,267 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:14:36,267 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:14:36,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:14:36,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:14:36,267 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:14:36,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:14:36,268 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:14:36,268 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:14:36,268 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:14:36,268 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_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d3fb7268073fcc251f9902f5b4913f30f169781 [2018-11-18 09:14:36,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:14:36,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:14:36,303 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:14:36,304 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:14:36,304 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:14:36,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c [2018-11-18 09:14:36,349 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/data/5e6d2171c/44039366b6b6439c921821d75d183c91/FLAG64ab72eda [2018-11-18 09:14:36,677 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:14:36,678 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/sv-benchmarks/c/termination-restricted-15/NO_04_false-termination_true-no-overflow.c [2018-11-18 09:14:36,682 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/data/5e6d2171c/44039366b6b6439c921821d75d183c91/FLAG64ab72eda [2018-11-18 09:14:37,110 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/data/5e6d2171c/44039366b6b6439c921821d75d183c91 [2018-11-18 09:14:37,112 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:14:37,113 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:14:37,114 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:14:37,114 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:14:37,116 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:14:37,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602e9054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37, skipping insertion in model container [2018-11-18 09:14:37,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:14:37,135 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:14:37,239 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:14:37,241 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:14:37,252 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:14:37,260 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:14:37,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37 WrapperNode [2018-11-18 09:14:37,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:14:37,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:14:37,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:14:37,261 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:14:37,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:14:37,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:14:37,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:14:37,280 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:14:37,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... [2018-11-18 09:14:37,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:14:37,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:14:37,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:14:37,292 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:14:37,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:37,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:14:37,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:14:37,480 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:14:37,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:14:37 BoogieIcfgContainer [2018-11-18 09:14:37,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:14:37,481 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:14:37,481 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:14:37,484 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:14:37,484 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:14:37,484 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:14:37" (1/3) ... [2018-11-18 09:14:37,485 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@540f9559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:14:37, skipping insertion in model container [2018-11-18 09:14:37,485 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:14:37,485 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:14:37" (2/3) ... [2018-11-18 09:14:37,486 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@540f9559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:14:37, skipping insertion in model container [2018-11-18 09:14:37,486 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:14:37,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:14:37" (3/3) ... [2018-11-18 09:14:37,487 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_04_false-termination_true-no-overflow.c [2018-11-18 09:14:37,530 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:14:37,531 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:14:37,531 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:14:37,531 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:14:37,531 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:14:37,531 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:14:37,531 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:14:37,531 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:14:37,531 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:14:37,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-11-18 09:14:37,560 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-18 09:14:37,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:37,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:37,566 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 09:14:37,567 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 09:14:37,567 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:14:37,567 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states. [2018-11-18 09:14:37,568 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-18 09:14:37,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:37,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:37,569 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 09:14:37,569 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 09:14:37,574 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 17#L15-3true [2018-11-18 09:14:37,574 INFO L796 eck$LassoCheckResult]: Loop: 17#L15-3true assume true; 21#L15-1true assume !!(main_~i~0 < 100);main_~a~0 := 2 + main_~i~0;main_~j~0 := 0; 3#L18-3true assume !true; 22#L18-4true main_~i~0 := 1 + main_~i~0; 17#L15-3true [2018-11-18 09:14:37,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:37,578 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 09:14:37,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:37,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:37,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:37,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:37,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:37,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1115913, now seen corresponding path program 1 times [2018-11-18 09:14:37,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:37,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:37,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:37,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:37,663 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 09:14:37,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:14:37,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 09:14:37,667 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:14:37,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 09:14:37,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 09:14:37,678 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-18 09:14:37,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:14:37,683 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2018-11-18 09:14:37,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 09:14:37,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 24 transitions. [2018-11-18 09:14:37,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-18 09:14:37,688 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 16 states and 20 transitions. [2018-11-18 09:14:37,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2018-11-18 09:14:37,689 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-18 09:14:37,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 20 transitions. [2018-11-18 09:14:37,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:14:37,690 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 09:14:37,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 20 transitions. [2018-11-18 09:14:37,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 09:14:37,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 09:14:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2018-11-18 09:14:37,707 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 09:14:37,707 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 20 transitions. [2018-11-18 09:14:37,708 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:14:37,708 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 20 transitions. [2018-11-18 09:14:37,708 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2018-11-18 09:14:37,708 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:37,708 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:37,709 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 09:14:37,709 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 09:14:37,709 INFO L794 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 57#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 58#L15-3 [2018-11-18 09:14:37,709 INFO L796 eck$LassoCheckResult]: Loop: 58#L15-3 assume true; 63#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := 2 + main_~i~0;main_~j~0 := 0; 48#L18-3 assume true; 49#L18-1 assume !(main_~j~0 < main_~a~0); 51#L18-4 main_~i~0 := 1 + main_~i~0; 58#L15-3 [2018-11-18 09:14:37,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:37,709 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 09:14:37,709 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:37,709 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:37,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:37,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:37,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:37,716 INFO L82 PathProgramCache]: Analyzing trace with hash 34543833, now seen corresponding path program 1 times [2018-11-18 09:14:37,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:37,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:37,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,717 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:14:37,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:37,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:37,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983319, now seen corresponding path program 1 times [2018-11-18 09:14:37,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:37,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:37,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:37,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:37,757 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 09:14:37,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:14:37,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:14:37,803 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:14:37,804 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:14:37,804 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:14:37,804 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:14:37,804 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 09:14:37,804 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:14:37,804 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:14:37,805 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:14:37,805 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_04_false-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 09:14:37,805 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:14:37,805 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:14:37,817 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 09:14:37,822 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 09:14:37,824 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 09:14:37,915 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:14:37,916 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:37,922 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:14:37,923 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:14:37,941 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:14:37,941 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_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:37,944 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:14:37,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:14:37,969 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:14:37,969 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_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:37,975 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:14:37,975 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:37,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 09:14:37,996 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:14:38,191 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 09:14:38,192 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:14:38,193 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:14:38,193 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:14:38,193 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:14:38,193 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 09:14:38,193 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:14:38,193 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:14:38,193 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:14:38,193 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_04_false-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 09:14:38,193 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:14:38,193 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:14:38,194 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 09:14:38,196 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 09:14:38,198 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 09:14:38,235 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:14:38,238 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 09:14:38,239 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 09:14:38,240 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:14:38,240 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:14:38,240 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:14:38,240 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:14:38,243 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:14:38,243 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 09:14:38,247 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:14:38,248 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 09:14:38,248 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:14:38,248 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:14:38,248 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:14:38,248 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:14:38,249 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:14:38,249 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 09:14:38,254 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:14:38,254 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 09:14:38,254 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:14:38,254 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:14:38,255 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:14:38,255 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:14:38,255 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:14:38,256 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:14:38,256 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:14:38,261 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 09:14:38,265 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 09:14:38,265 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 09:14:38,267 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 09:14:38,267 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 09:14:38,267 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 09:14:38,267 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 09:14:38,268 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 09:14:38,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,294 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:14:38,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:14:38,343 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 09:14:38,345 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 09:14:38,346 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5 Second operand 5 states. [2018-11-18 09:14:38,419 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 20 transitions. cyclomatic complexity: 5. Second operand 5 states. Result 57 states and 74 transitions. Complement of second has 8 states. [2018-11-18 09:14:38,420 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 09:14:38,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 09:14:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2018-11-18 09:14:38,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-18 09:14:38,422 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:14:38,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-18 09:14:38,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:14:38,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-18 09:14:38,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:14:38,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 57 states and 74 transitions. [2018-11-18 09:14:38,424 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-18 09:14:38,425 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 57 states to 56 states and 73 transitions. [2018-11-18 09:14:38,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-18 09:14:38,426 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2018-11-18 09:14:38,426 INFO L73 IsDeterministic]: Start isDeterministic. Operand 56 states and 73 transitions. [2018-11-18 09:14:38,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 09:14:38,426 INFO L705 BuchiCegarLoop]: Abstraction has 56 states and 73 transitions. [2018-11-18 09:14:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states and 73 transitions. [2018-11-18 09:14:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 37. [2018-11-18 09:14:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-18 09:14:38,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2018-11-18 09:14:38,428 INFO L728 BuchiCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-11-18 09:14:38,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:14:38,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:14:38,429 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 4 states. [2018-11-18 09:14:38,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:14:38,455 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2018-11-18 09:14:38,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:14:38,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 53 states and 68 transitions. [2018-11-18 09:14:38,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-18 09:14:38,457 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 53 states to 28 states and 35 transitions. [2018-11-18 09:14:38,457 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-18 09:14:38,458 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-18 09:14:38,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 35 transitions. [2018-11-18 09:14:38,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:14:38,458 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 35 transitions. [2018-11-18 09:14:38,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 35 transitions. [2018-11-18 09:14:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 18. [2018-11-18 09:14:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 09:14:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2018-11-18 09:14:38,461 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-11-18 09:14:38,461 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-11-18 09:14:38,461 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:14:38,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2018-11-18 09:14:38,462 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2018-11-18 09:14:38,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:38,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:38,462 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 09:14:38,462 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:14:38,463 INFO L794 eck$LassoCheckResult]: Stem: 276#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 273#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 274#L15-3 [2018-11-18 09:14:38,463 INFO L796 eck$LassoCheckResult]: Loop: 274#L15-3 assume true; 279#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := 2 + main_~i~0;main_~j~0 := 0; 264#L18-3 assume true; 265#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := 3 + (main_~i~0 + main_~j~0); 268#L20-3 assume true; 269#L20-1 assume !(main_~k~0 >= 0); 266#L20-4 main_~j~0 := 1 + main_~j~0; 267#L18-3 assume true; 281#L18-1 assume !(main_~j~0 < main_~a~0); 280#L18-4 main_~i~0 := 1 + main_~i~0; 274#L15-3 [2018-11-18 09:14:38,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,463 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-11-18 09:14:38,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,471 INFO L82 PathProgramCache]: Analyzing trace with hash 2043710161, now seen corresponding path program 1 times [2018-11-18 09:14:38,471 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,473 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:14:38,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:14:38,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:14:38,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:14:38,486 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:14:38,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 09:14:38,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 09:14:38,486 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 09:14:38,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:14:38,510 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2018-11-18 09:14:38,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 09:14:38,510 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-11-18 09:14:38,511 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 24 [2018-11-18 09:14:38,511 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 28 states and 34 transitions. [2018-11-18 09:14:38,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-18 09:14:38,512 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-18 09:14:38,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 34 transitions. [2018-11-18 09:14:38,512 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:14:38,512 INFO L705 BuchiCegarLoop]: Abstraction has 28 states and 34 transitions. [2018-11-18 09:14:38,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 34 transitions. [2018-11-18 09:14:38,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2018-11-18 09:14:38,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 09:14:38,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2018-11-18 09:14:38,513 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-11-18 09:14:38,513 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-11-18 09:14:38,513 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:14:38,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 24 transitions. [2018-11-18 09:14:38,514 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 18 [2018-11-18 09:14:38,514 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:38,515 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:38,515 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 09:14:38,515 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:14:38,515 INFO L794 eck$LassoCheckResult]: Stem: 332#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 329#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 330#L15-3 [2018-11-18 09:14:38,515 INFO L796 eck$LassoCheckResult]: Loop: 330#L15-3 assume true; 335#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := 2 + main_~i~0;main_~j~0 := 0; 336#L18-3 assume true; 322#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := 3 + (main_~i~0 + main_~j~0); 323#L20-3 assume true; 324#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := 4 + (main_~i~0 + main_~j~0 + main_~k~0);main_~l~0 := 0; 325#L23-3 assume true; 328#L23-1 assume !(main_~l~0 < main_~b~0); 326#L23-4 main_~k~0 := main_~k~0 - 1; 327#L20-3 assume true; 338#L20-1 assume !(main_~k~0 >= 0); 321#L20-4 main_~j~0 := 1 + main_~j~0; 319#L18-3 assume true; 320#L18-1 assume !(main_~j~0 < main_~a~0); 337#L18-4 main_~i~0 := 1 + main_~i~0; 330#L15-3 [2018-11-18 09:14:38,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,515 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2018-11-18 09:14:38,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,517 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,519 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1977569929, now seen corresponding path program 1 times [2018-11-18 09:14:38,519 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,520 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:14:38,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:14:38,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:14:38,567 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:38,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:14:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 09:14:38,636 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:14:38,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2018-11-18 09:14:38,636 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:14:38,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 09:14:38,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 09:14:38,637 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. cyclomatic complexity: 5 Second operand 7 states. [2018-11-18 09:14:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:14:38,749 INFO L93 Difference]: Finished difference Result 51 states and 62 transitions. [2018-11-18 09:14:38,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 09:14:38,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 51 states and 62 transitions. [2018-11-18 09:14:38,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 47 [2018-11-18 09:14:38,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 51 states to 51 states and 62 transitions. [2018-11-18 09:14:38,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 51 [2018-11-18 09:14:38,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 51 [2018-11-18 09:14:38,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 62 transitions. [2018-11-18 09:14:38,752 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:14:38,752 INFO L705 BuchiCegarLoop]: Abstraction has 51 states and 62 transitions. [2018-11-18 09:14:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states and 62 transitions. [2018-11-18 09:14:38,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 32. [2018-11-18 09:14:38,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-18 09:14:38,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-11-18 09:14:38,754 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-11-18 09:14:38,754 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-11-18 09:14:38,754 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 09:14:38,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 38 transitions. [2018-11-18 09:14:38,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 30 [2018-11-18 09:14:38,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:38,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:38,756 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 09:14:38,756 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:14:38,756 INFO L794 eck$LassoCheckResult]: Stem: 470#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 466#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 467#L15-3 [2018-11-18 09:14:38,756 INFO L796 eck$LassoCheckResult]: Loop: 467#L15-3 assume true; 473#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := 2 + main_~i~0;main_~j~0 := 0; 474#L18-3 assume true; 458#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := 3 + (main_~i~0 + main_~j~0); 459#L20-3 assume true; 460#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := 4 + (main_~i~0 + main_~j~0 + main_~k~0);main_~l~0 := 0; 486#L23-3 assume true; 485#L23-1 assume !!(main_~l~0 < main_~b~0);main_~m~0 := 1000 + (main_~i~0 + main_~j~0 + main_~k~0 + main_~l~0); 480#L25-3 assume true; 483#L25-1 assume !(main_~m~0 >= 0); 482#L25-4 main_~l~0 := 1 + main_~l~0; 481#L23-3 assume true; 479#L23-1 assume !(main_~l~0 < main_~b~0); 463#L23-4 main_~k~0 := main_~k~0 - 1; 464#L20-3 assume true; 461#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := 4 + (main_~i~0 + main_~j~0 + main_~k~0);main_~l~0 := 0; 462#L23-3 assume true; 465#L23-1 assume !!(main_~l~0 < main_~b~0);main_~m~0 := 1000 + (main_~i~0 + main_~j~0 + main_~k~0 + main_~l~0); 471#L25-3 assume true; 472#L25-1 assume !(main_~m~0 >= 0); 468#L25-4 main_~l~0 := 1 + main_~l~0; 469#L23-3 assume true; 484#L23-1 assume !(main_~l~0 < main_~b~0); 478#L23-4 main_~k~0 := main_~k~0 - 1; 477#L20-3 assume true; 476#L20-1 assume !(main_~k~0 >= 0); 457#L20-4 main_~j~0 := 1 + main_~j~0; 455#L18-3 assume true; 456#L18-1 assume !(main_~j~0 < main_~a~0); 475#L18-4 main_~i~0 := 1 + main_~i~0; 467#L15-3 [2018-11-18 09:14:38,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,756 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2018-11-18 09:14:38,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,760 INFO L82 PathProgramCache]: Analyzing trace with hash -980587919, now seen corresponding path program 1 times [2018-11-18 09:14:38,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,761 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:14:38,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,810 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 09:14:38,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 09:14:38,810 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/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 09:14:38,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:14:38,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:14:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 09:14:38,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 09:14:38,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2018-11-18 09:14:38,873 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:14:38,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 09:14:38,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-11-18 09:14:38,874 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. cyclomatic complexity: 7 Second operand 8 states. [2018-11-18 09:14:38,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:14:38,913 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-18 09:14:38,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 09:14:38,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 12 transitions. [2018-11-18 09:14:38,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 09:14:38,914 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 12 transitions. [2018-11-18 09:14:38,914 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-18 09:14:38,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 09:14:38,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 12 transitions. [2018-11-18 09:14:38,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:14:38,915 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-18 09:14:38,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 12 transitions. [2018-11-18 09:14:38,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-18 09:14:38,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 09:14:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-18 09:14:38,916 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-18 09:14:38,916 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-18 09:14:38,916 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-18 09:14:38,916 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 12 transitions. [2018-11-18 09:14:38,916 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 09:14:38,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:14:38,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:14:38,917 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:14:38,917 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 09:14:38,917 INFO L794 eck$LassoCheckResult]: Stem: 603#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 599#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_~i~0, main_~j~0, main_~k~0, main_~l~0, main_~m~0, main_~a~0, main_~b~0;havoc main_~i~0;havoc main_~j~0;havoc main_~k~0;havoc main_~l~0;havoc main_~m~0;havoc main_~a~0;havoc main_~b~0;main_~i~0 := 0; 600#L15-3 assume true; 609#L15-1 assume !!(main_~i~0 < 100);main_~a~0 := 2 + main_~i~0;main_~j~0 := 0; 601#L18-3 assume true; 602#L18-1 assume !!(main_~j~0 < main_~a~0);main_~k~0 := 3 + (main_~i~0 + main_~j~0); 607#L20-3 assume true; 608#L20-1 assume !!(main_~k~0 >= 0);main_~b~0 := 4 + (main_~i~0 + main_~j~0 + main_~k~0);main_~l~0 := 0; 610#L23-3 assume true; 604#L23-1 assume !!(main_~l~0 < main_~b~0);main_~m~0 := 1000 + (main_~i~0 + main_~j~0 + main_~k~0 + main_~l~0); 605#L25-3 [2018-11-18 09:14:38,917 INFO L796 eck$LassoCheckResult]: Loop: 605#L25-3 assume true; 606#L25-1 assume !!(main_~m~0 >= 0);main_~m~0 := main_~m~0 - 0; 605#L25-3 [2018-11-18 09:14:38,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1005632933, now seen corresponding path program 1 times [2018-11-18 09:14:38,918 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2439, now seen corresponding path program 1 times [2018-11-18 09:14:38,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:14:38,932 INFO L82 PathProgramCache]: Analyzing trace with hash -45605535, now seen corresponding path program 1 times [2018-11-18 09:14:38,932 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:14:38,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:14:38,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:14:38,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:14:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:14:38,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:14:38 BoogieIcfgContainer [2018-11-18 09:14:38,995 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:14:38,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:14:38,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:14:38,996 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:14:38,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:14:37" (3/4) ... [2018-11-18 09:14:38,999 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:14:39,028 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_97db6cde-92cf-489d-a2d4-d9e43da72e9b/bin-2019/uautomizer/witness.graphml [2018-11-18 09:14:39,028 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:14:39,029 INFO L168 Benchmark]: Toolchain (without parser) took 1916.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 959.2 MB in the beginning and 938.6 MB in the end (delta: 20.7 MB). Peak memory consumption was 156.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:14:39,030 INFO L168 Benchmark]: CDTParser took 0.15 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 09:14:39,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:14:39,031 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.56 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:14:39,031 INFO L168 Benchmark]: Boogie Preprocessor took 12.06 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:14:39,031 INFO L168 Benchmark]: RCFGBuilder took 188.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 09:14:39,032 INFO L168 Benchmark]: BuchiAutomizer took 1514.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.6 MB in the end (delta: 182.0 MB). Peak memory consumption was 182.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:14:39,032 INFO L168 Benchmark]: Witness Printer took 32.63 ms. Allocated memory is still 1.2 GB. Free memory is still 938.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:14:39,034 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 147.26 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.56 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.06 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 188.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -174.8 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1514.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 938.6 MB in the end (delta: 182.0 MB). Peak memory consumption was 182.0 MB. Max. memory is 11.5 GB. * Witness Printer took 32.63 ms. Allocated memory is still 1.2 GB. Free memory is still 938.6 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 6 terminating modules (5 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 12 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 6 iterations. TraceHistogramMax:4. Analysis of lassos took 0.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 56 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 32 states and ocurred in iteration 4. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 87 SDtfs, 232 SDslu, 125 SDs, 0 SdLazy, 126 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf96 lsp60 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq188 hnf91 smp100 dnf100 smp100 tf106 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 25]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {a=2, \result=0, b=7, m=1003, l=0, i=0, k=3, j=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int j; [L8] int k; [L9] int l; [L10] int m; [L11] int a; [L12] int b; [L13] i = 0 [L15] COND TRUE i < 100 [L16] a = i+2 [L17] j = 0 [L18] COND TRUE j < a [L19] k = i+j+3 [L20] COND TRUE k >= 0 [L21] b = i+j+k+4 [L22] l = 0 [L23] COND TRUE l < b [L24] m = i+j+k+l+1000 Loop: [L25] COND TRUE m >= 0 [L26] m = m-0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...