./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.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_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 b11f086006b59545dfe302b4d0afe0208312f571 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:15:39,637 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:15:39,638 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:15:39,644 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:15:39,644 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:15:39,645 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:15:39,645 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:15:39,646 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:15:39,648 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:15:39,648 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:15:39,649 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:15:39,649 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:15:39,650 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:15:39,650 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:15:39,651 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:15:39,651 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:15:39,652 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:15:39,653 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:15:39,655 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:15:39,656 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:15:39,656 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:15:39,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:15:39,659 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:15:39,659 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:15:39,659 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:15:39,660 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:15:39,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:15:39,661 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:15:39,661 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:15:39,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:15:39,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:15:39,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:15:39,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:15:39,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:15:39,664 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:15:39,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:15:39,664 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 09:15:39,675 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:15:39,675 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:15:39,676 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:15:39,676 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:15:39,677 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:15:39,677 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:15:39,677 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:15:39,677 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:15:39,677 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:15:39,677 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:15:39,677 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:15:39,678 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:15:39,678 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:15:39,678 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:15:39,678 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:15:39,678 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:15:39,678 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:15:39,679 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:15:39,679 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:15:39,679 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:15:39,679 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:15:39,679 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:15:39,679 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:15:39,679 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:15:39,680 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:15:39,680 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:15:39,680 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:15:39,680 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:15:39,681 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:15:39,681 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_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 -> b11f086006b59545dfe302b4d0afe0208312f571 [2018-11-18 09:15:39,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:15:39,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:15:39,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:15:39,714 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:15:39,714 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:15:39,715 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-18 09:15:39,752 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/data/28a2d272f/f9540b6f35884422abf9b3a5a29edbab/FLAG3d51a2971 [2018-11-18 09:15:40,133 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:15:40,134 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/sv-benchmarks/c/termination-crafted/aaron3_true-termination_true-valid-memsafety.c [2018-11-18 09:15:40,137 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/data/28a2d272f/f9540b6f35884422abf9b3a5a29edbab/FLAG3d51a2971 [2018-11-18 09:15:40,145 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/data/28a2d272f/f9540b6f35884422abf9b3a5a29edbab [2018-11-18 09:15:40,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:15:40,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:15:40,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:15:40,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:15:40,152 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:15:40,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65ec56fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40, skipping insertion in model container [2018-11-18 09:15:40,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:15:40,172 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:15:40,272 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:15:40,274 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:15:40,285 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:15:40,293 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:15:40,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40 WrapperNode [2018-11-18 09:15:40,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:15:40,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:15:40,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:15:40,294 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:15:40,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:15:40,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:15:40,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:15:40,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:15:40,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... [2018-11-18 09:15:40,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:15:40,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:15:40,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:15:40,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:15:40,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 09:15:40,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:15:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:15:40,526 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:15:40,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:15:40 BoogieIcfgContainer [2018-11-18 09:15:40,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:15:40,527 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:15:40,527 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:15:40,530 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:15:40,531 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:15:40,531 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:15:40" (1/3) ... [2018-11-18 09:15:40,532 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71ad5542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:15:40, skipping insertion in model container [2018-11-18 09:15:40,532 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:15:40,532 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:15:40" (2/3) ... [2018-11-18 09:15:40,533 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71ad5542 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:15:40, skipping insertion in model container [2018-11-18 09:15:40,533 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:15:40,533 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:15:40" (3/3) ... [2018-11-18 09:15:40,534 INFO L375 chiAutomizerObserver]: Analyzing ICFG aaron3_true-termination_true-valid-memsafety.c [2018-11-18 09:15:40,583 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:15:40,584 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:15:40,584 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:15:40,584 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:15:40,584 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:15:40,584 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:15:40,584 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:15:40,585 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:15:40,585 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:15:40,595 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-18 09:15:40,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 09:15:40,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:40,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:40,619 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 09:15:40,619 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 09:15:40,620 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:15:40,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-18 09:15:40,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 09:15:40,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:40,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:40,621 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 09:15:40,622 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 09:15:40,628 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L22true assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 8#L23true assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 11#L24true assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 13#L25true assume !!(main_~y~0 <= 1073741823); 14#L27-2true [2018-11-18 09:15:40,629 INFO L796 eck$LassoCheckResult]: Loop: 14#L27-2true assume true; 15#L26-1true assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 3#L27true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 14#L27-2true [2018-11-18 09:15:40,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:40,635 INFO L82 PathProgramCache]: Analyzing trace with hash 889571341, now seen corresponding path program 1 times [2018-11-18 09:15:40,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:40,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:40,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:40,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:40,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:40,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:40,703 INFO L82 PathProgramCache]: Analyzing trace with hash 55811, now seen corresponding path program 1 times [2018-11-18 09:15:40,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:40,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:40,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:40,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:40,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:40,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:40,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629431, now seen corresponding path program 1 times [2018-11-18 09:15:40,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:40,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:40,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:40,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:40,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:40,771 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:40,772 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:40,772 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:40,772 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:40,772 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 09:15:40,772 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:40,772 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:40,773 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:40,773 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-18 09:15:40,773 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:40,773 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:40,787 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 09:15:40,804 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 09:15:40,806 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 09:15:40,811 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 09:15:40,880 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:40,880 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 09:15:40,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:40,883 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 09:15:40,903 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 09:15:40,903 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:41,095 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 09:15:41,096 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:41,096 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:41,096 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:41,096 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:41,096 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 09:15:41,096 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:41,097 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:41,097 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:41,097 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration1_Loop [2018-11-18 09:15:41,097 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:41,097 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:41,098 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 09:15:41,103 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 09:15:41,105 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 09:15:41,110 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 09:15:41,158 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:41,161 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 09:15:41,162 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 09:15:41,163 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:41,163 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:41,163 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:41,164 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:41,164 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:41,166 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:15:41,166 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:41,173 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 09:15:41,178 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 09:15:41,178 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 09:15:41,179 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 09:15:41,180 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 09:15:41,180 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 09:15:41,180 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-18 09:15:41,181 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 09:15:41,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:41,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:41,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:41,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:41,229 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 09:15:41,243 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 09:15:41,244 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 4 states. [2018-11-18 09:15:41,296 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 4 states. Result 35 states and 44 transitions. Complement of second has 8 states. [2018-11-18 09:15:41,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 09:15:41,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 09:15:41,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2018-11-18 09:15:41,299 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 09:15:41,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:41,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 09:15:41,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:41,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 09:15:41,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:41,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 44 transitions. [2018-11-18 09:15:41,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 09:15:41,305 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 16 states and 19 transitions. [2018-11-18 09:15:41,306 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-18 09:15:41,306 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-18 09:15:41,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 19 transitions. [2018-11-18 09:15:41,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 09:15:41,307 INFO L705 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-18 09:15:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 19 transitions. [2018-11-18 09:15:41,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 09:15:41,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 09:15:41,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2018-11-18 09:15:41,323 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-18 09:15:41,323 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 19 transitions. [2018-11-18 09:15:41,323 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:15:41,323 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 19 transitions. [2018-11-18 09:15:41,323 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 09:15:41,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:41,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:41,324 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:41,324 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 09:15:41,324 INFO L794 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 106#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 107#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 112#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 113#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 114#L25 assume !!(main_~y~0 <= 1073741823); 115#L27-2 assume true; 119#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 109#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 104#L31 [2018-11-18 09:15:41,324 INFO L796 eck$LassoCheckResult]: Loop: 104#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 105#L27-2 assume true; 116#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 117#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 104#L31 [2018-11-18 09:15:41,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:41,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1271629424, now seen corresponding path program 1 times [2018-11-18 09:15:41,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:41,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:41,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:41,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:41,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:41,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:41,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:41,337 INFO L82 PathProgramCache]: Analyzing trace with hash 2141174, now seen corresponding path program 1 times [2018-11-18 09:15:41,337 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:41,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:41,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:41,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:41,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:41,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:41,344 INFO L82 PathProgramCache]: Analyzing trace with hash -724213019, now seen corresponding path program 1 times [2018-11-18 09:15:41,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:41,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:41,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:41,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:41,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:41,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:41,409 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:41,409 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:41,409 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:41,410 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:41,410 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 09:15:41,410 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:41,410 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:41,410 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:41,410 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-18 09:15:41,410 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:41,410 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:41,411 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 09:15:41,413 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 09:15:41,415 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 09:15:41,424 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 09:15:41,478 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:41,478 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 09:15:41,480 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:41,481 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:41,497 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:15:41,497 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_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 09:15:41,499 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:41,499 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:41,502 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:15:41,502 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=-1} Honda state: {ULTIMATE.start_main_#t~nondet4=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 6 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:41,517 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:41,517 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 7 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:41,534 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 09:15:41,534 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:53,596 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2018-11-18 09:15:53,602 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:53,602 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:53,602 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:53,602 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:53,603 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 09:15:53,603 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:53,603 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:53,603 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:53,603 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration2_Loop [2018-11-18 09:15:53,603 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:53,603 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:53,604 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 09:15:53,606 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 09:15:53,607 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 09:15:53,616 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 09:15:53,673 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:53,673 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 09:15:53,674 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 09:15:53,675 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,678 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,679 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:53,679 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:53,680 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:15:53,681 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 09:15:53,684 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:53,684 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 09:15:53,685 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,685 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:53,685 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,685 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 09:15:53,685 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:53,686 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 09:15:53,686 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:53,689 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:53,690 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 09:15:53,690 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,691 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:53,691 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,691 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:53,692 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:53,692 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:15:53,693 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:53,700 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:53,700 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 09:15:53,701 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,701 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,701 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:53,701 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:53,702 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:15:53,702 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 09:15:53,706 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:53,707 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-11-18 09:15:53,707 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 09:15:53,708 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,708 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,708 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:53,708 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-18 09:15:53,710 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-18 09:15:53,710 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-18 09:15:53,713 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:53,714 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 09:15:53,714 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,714 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:53,714 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,714 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 09:15:53,715 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-18 09:15:53,715 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:15:53,715 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:53,721 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:53,722 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 09:15:53,722 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:53,722 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:53,722 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:53,723 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:53,723 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-18 09:15:53,724 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-18 09:15:53,724 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:53,735 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 09:15:53,749 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-18 09:15:53,749 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-18 09:15:53,749 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 09:15:53,750 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 09:15:53,750 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 09:15:53,750 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = 2*ULTIMATE.start_main_~z~0 f1 = 2*ULTIMATE.start_main_~tx~0 + 2*ULTIMATE.start_main_~z~0 + 2147483647 Supporting invariants [] [2018-11-18 09:15:53,751 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 09:15:53,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:53,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:53,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:53,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:53,934 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 09:15:53,934 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 09:15:53,934 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 09:15:54,021 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 19 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 24 states and 29 transitions. Complement of second has 6 states. [2018-11-18 09:15:54,023 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 09:15:54,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 09:15:54,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2018-11-18 09:15:54,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 09:15:54,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-18 09:15:54,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,025 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-18 09:15:54,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2018-11-18 09:15:54,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 09:15:54,026 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 29 transitions. [2018-11-18 09:15:54,027 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-18 09:15:54,027 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-18 09:15:54,027 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 29 transitions. [2018-11-18 09:15:54,027 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 09:15:54,027 INFO L705 BuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-11-18 09:15:54,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 29 transitions. [2018-11-18 09:15:54,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2018-11-18 09:15:54,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 09:15:54,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2018-11-18 09:15:54,031 INFO L728 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-11-18 09:15:54,031 INFO L608 BuchiCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-11-18 09:15:54,031 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:15:54,031 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 25 transitions. [2018-11-18 09:15:54,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 09:15:54,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:54,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:54,032 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:54,032 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 09:15:54,032 INFO L794 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 215#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 216#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 221#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 222#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 223#L25 assume !!(main_~y~0 <= 1073741823); 227#L27-2 assume true; 229#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 228#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 211#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 213#L27-2 [2018-11-18 09:15:54,032 INFO L796 eck$LassoCheckResult]: Loop: 213#L27-2 assume true; 224#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 218#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 213#L27-2 [2018-11-18 09:15:54,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,033 INFO L82 PathProgramCache]: Analyzing trace with hash 765806520, now seen corresponding path program 2 times [2018-11-18 09:15:54,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:54,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:54,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:54,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,041 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,041 INFO L82 PathProgramCache]: Analyzing trace with hash 55811, now seen corresponding path program 2 times [2018-11-18 09:15:54,041 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:54,042 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:54,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,043 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:54,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,047 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash -724213012, now seen corresponding path program 1 times [2018-11-18 09:15:54,047 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:54,047 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:54,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,048 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:54,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,078 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:54,079 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:54,079 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:54,079 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:54,079 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 09:15:54,079 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,079 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:54,079 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:54,079 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-18 09:15:54,079 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:54,080 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:54,081 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 09:15:54,087 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 09:15:54,094 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 09:15:54,099 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 09:15:54,147 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:54,147 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 8 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,149 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:54,149 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:54,151 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:15:54,151 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 9 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,167 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:54,167 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,184 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 09:15:54,184 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:54,369 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 09:15:54,371 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:54,371 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:54,371 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:54,371 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:54,371 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 09:15:54,371 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,371 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:54,371 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:54,371 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration3_Loop [2018-11-18 09:15:54,371 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:54,372 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:54,373 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 09:15:54,374 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 09:15:54,378 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 09:15:54,380 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 09:15:54,403 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:54,404 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 09:15:54,404 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 09:15:54,404 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:54,404 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:54,404 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:54,404 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:54,405 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:54,405 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:15:54,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:54,405 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:54,406 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 09:15:54,406 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:54,406 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:54,406 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:54,406 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:54,407 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:54,407 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:15:54,407 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:54,409 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 09:15:54,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 09:15:54,411 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 09:15:54,411 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 09:15:54,411 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 09:15:54,411 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 09:15:54,411 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-18 09:15:54,412 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 09:15:54,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,426 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,439 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 09:15:54,439 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 09:15:54,439 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-18 09:15:54,451 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 20 states and 25 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 31 states and 38 transitions. Complement of second has 7 states. [2018-11-18 09:15:54,451 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 09:15:54,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 09:15:54,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-18 09:15:54,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-18 09:15:54,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 13 letters. Loop has 3 letters. [2018-11-18 09:15:54,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 10 letters. Loop has 6 letters. [2018-11-18 09:15:54,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 38 transitions. [2018-11-18 09:15:54,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 09:15:54,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 25 states and 30 transitions. [2018-11-18 09:15:54,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-18 09:15:54,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-18 09:15:54,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2018-11-18 09:15:54,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 09:15:54,454 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-11-18 09:15:54,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2018-11-18 09:15:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-18 09:15:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 09:15:54,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2018-11-18 09:15:54,456 INFO L728 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-11-18 09:15:54,456 INFO L608 BuchiCegarLoop]: Abstraction has 25 states and 30 transitions. [2018-11-18 09:15:54,456 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:15:54,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 30 transitions. [2018-11-18 09:15:54,457 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 09:15:54,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:15:54,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:15:54,458 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-11-18 09:15:54,458 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 09:15:54,458 INFO L794 eck$LassoCheckResult]: Stem: 332#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 325#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~z~0, main_~tx~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~tx~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~tx~0 := main_#t~nondet3;havoc main_#t~nondet3; 326#L22 assume !!(-1073741823 <= main_~tx~0 && main_~tx~0 <= 1073741823); 335#L23 assume !!(-1073741823 <= main_~z~0 && main_~z~0 <= 1073741823); 336#L24 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 337#L25 assume !!(main_~y~0 <= 1073741823); 343#L27-2 assume true; 340#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 341#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 327#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 328#L27-2 assume true; 349#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 344#L27 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~tx~0 := main_~x~0;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5; 329#L31 assume !!(-1073741823 <= main_~x~0 && main_~x~0 <= 1073741823); 331#L27-2 [2018-11-18 09:15:54,458 INFO L796 eck$LassoCheckResult]: Loop: 331#L27-2 assume true; 338#L26-1 assume !!(main_~x~0 >= main_~y~0 && main_~x~0 <= main_~tx~0 + main_~z~0); 333#L27 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~y~0 := 1 + main_~y~0; 331#L27-2 [2018-11-18 09:15:54,458 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,458 INFO L82 PathProgramCache]: Analyzing trace with hash -975767069, now seen corresponding path program 3 times [2018-11-18 09:15:54,459 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:54,459 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:54,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:15:54,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,468 INFO L82 PathProgramCache]: Analyzing trace with hash 55811, now seen corresponding path program 3 times [2018-11-18 09:15:54,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:54,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:54,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,469 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:54,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,474 INFO L82 PathProgramCache]: Analyzing trace with hash -738067231, now seen corresponding path program 2 times [2018-11-18 09:15:54,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:15:54,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:15:54,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,475 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:15:54,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:15:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:15:54,517 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:54,518 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:54,518 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:54,518 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:54,518 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 09:15:54,518 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,519 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:54,519 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:54,519 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-18 09:15:54,519 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:54,519 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:54,521 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 09:15:54,530 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 09:15:54,534 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 09:15:54,535 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 09:15:54,561 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:54,561 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,566 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:54,566 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:54,581 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:15:54,581 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_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,584 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:54,584 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:54,599 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:15:54,599 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_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,601 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:54,602 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:54,603 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 09:15:54,603 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/bin-2019/uautomizer/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 09:15:54,619 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0f1a7196-9e7f-4583-a3b5-6777b91d51c3/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 09:15:54,637 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 09:15:54,637 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 09:15:54,806 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 09:15:54,807 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 09:15:54,808 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 09:15:54,808 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 09:15:54,808 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 09:15:54,808 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 09:15:54,808 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 09:15:54,808 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 09:15:54,808 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 09:15:54,808 INFO L131 ssoRankerPreferences]: Filename of dumped script: aaron3_true-termination_true-valid-memsafety.c_Iteration4_Loop [2018-11-18 09:15:54,808 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 09:15:54,808 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 09:15:54,809 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 09:15:54,815 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 09:15:54,816 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 09:15:54,818 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 09:15:54,844 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 09:15:54,844 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 09:15:54,844 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 09:15:54,845 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:54,845 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:54,845 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:54,845 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:54,846 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:15:54,846 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 09:15:54,848 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:54,848 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 09:15:54,848 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:54,848 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:54,848 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:54,848 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:54,849 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:54,849 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:15:54,849 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:54,849 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:54,850 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 09:15:54,850 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:54,850 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:54,850 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:54,850 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:54,851 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 09:15:54,851 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 09:15:54,852 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 09:15:54,853 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 09:15:54,853 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 09:15:54,853 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 09:15:54,853 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 09:15:54,853 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 09:15:54,853 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 09:15:54,854 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 09:15:54,854 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 09:15:54,855 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 09:15:54,857 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 09:15:54,857 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 09:15:54,857 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 09:15:54,857 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 09:15:54,857 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 09:15:54,857 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~y~0 + 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-18 09:15:54,858 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 09:15:54,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,885 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,893 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 09:15:54,894 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 09:15:54,894 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-18 09:15:54,901 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 29 states and 34 transitions. Complement of second has 7 states. [2018-11-18 09:15:54,902 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 09:15:54,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 09:15:54,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-18 09:15:54,903 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-18 09:15:54,903 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,903 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 09:15:54,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,917 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,925 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 09:15:54,925 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 09:15:54,925 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-18 09:15:54,932 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 29 states and 34 transitions. Complement of second has 7 states. [2018-11-18 09:15:54,932 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 09:15:54,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 09:15:54,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 14 transitions. [2018-11-18 09:15:54,933 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 14 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-18 09:15:54,933 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,933 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 09:15:54,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:15:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,944 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:15:54,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 09:15:54,958 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 09:15:54,959 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 2 loop predicates [2018-11-18 09:15:54,959 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-18 09:15:54,965 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 30 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 34 states and 40 transitions. Complement of second has 6 states. [2018-11-18 09:15:54,966 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 09:15:54,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 09:15:54,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-18 09:15:54,966 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 3 letters. [2018-11-18 09:15:54,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 17 letters. Loop has 3 letters. [2018-11-18 09:15:54,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,967 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 14 letters. Loop has 6 letters. [2018-11-18 09:15:54,967 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 09:15:54,967 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 40 transitions. [2018-11-18 09:15:54,969 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 09:15:54,969 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2018-11-18 09:15:54,969 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 09:15:54,969 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 09:15:54,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 09:15:54,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:15:54,969 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:15:54,969 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:15:54,969 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 09:15:54,969 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 09:15:54,970 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 09:15:54,970 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 09:15:54,970 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 09:15:54,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:15:54 BoogieIcfgContainer [2018-11-18 09:15:54,974 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:15:54,974 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:15:54,974 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:15:54,975 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:15:54,975 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:15:40" (3/4) ... [2018-11-18 09:15:54,977 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 09:15:54,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:15:54,978 INFO L168 Benchmark]: Toolchain (without parser) took 14829.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -102.4 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:15:54,979 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:15:54,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:15:54,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.64 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 09:15:54,980 INFO L168 Benchmark]: Boogie Preprocessor took 12.67 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 09:15:54,980 INFO L168 Benchmark]: RCFGBuilder took 201.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 09:15:54,980 INFO L168 Benchmark]: BuchiAutomizer took 14447.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. [2018-11-18 09:15:54,981 INFO L168 Benchmark]: Witness Printer took 2.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:15:54,983 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.49 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 18.64 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 12.67 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 201.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -179.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 14447.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 11.5 GB. * Witness Printer took 2.89 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 5 locations. One deterministic module has 2-nested ranking function (if 2 * z > 0 then 1 else 0), (if 2 * z > 0 then 2 * z else 2 * tx + 2 * z + 2147483647) and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * y + 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 13.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 25 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 78 SDtfs, 82 SDslu, 20 SDs, 0 SdLazy, 39 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax159 hnf100 lsp53 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...