./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/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 32bit --witnessprinter.graph.data.programhash f9c03ff796f05925e62ae0f4fb320e42fa8b7c37 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 02:22:35,529 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 02:22:35,530 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 02:22:35,536 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 02:22:35,536 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 02:22:35,537 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 02:22:35,538 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 02:22:35,538 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 02:22:35,539 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 02:22:35,539 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 02:22:35,540 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 02:22:35,540 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 02:22:35,541 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 02:22:35,541 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 02:22:35,542 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 02:22:35,542 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 02:22:35,542 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 02:22:35,543 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 02:22:35,544 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 02:22:35,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 02:22:35,545 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 02:22:35,546 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 02:22:35,547 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 02:22:35,547 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 02:22:35,548 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 02:22:35,548 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 02:22:35,549 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 02:22:35,549 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 02:22:35,550 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 02:22:35,550 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 02:22:35,550 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 02:22:35,551 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 02:22:35,551 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 02:22:35,551 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 02:22:35,552 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 02:22:35,552 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 02:22:35,552 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 02:22:35,561 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 02:22:35,561 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 02:22:35,562 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 02:22:35,562 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 02:22:35,563 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 02:22:35,563 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 02:22:35,563 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 02:22:35,563 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 02:22:35,563 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 02:22:35,563 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 02:22:35,563 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 02:22:35,564 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 02:22:35,564 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 02:22:35,564 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 02:22:35,564 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 02:22:35,564 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 02:22:35,564 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 02:22:35,564 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 02:22:35,565 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 02:22:35,565 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 02:22:35,566 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 02:22:35,566 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 02:22:35,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 02:22:35,566 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 02:22:35,566 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 02:22:35,567 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 02:22:35,567 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_8aa87b71-b8f7-4325-8dc0-3b668780288c/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9c03ff796f05925e62ae0f4fb320e42fa8b7c37 [2018-11-23 02:22:35,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 02:22:35,600 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 02:22:35,603 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 02:22:35,604 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 02:22:35,604 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 02:22:35,604 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/../../sv-benchmarks/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2018-11-23 02:22:35,648 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/data/135ac33e1/e62faee768614bebbb39b51c698c3a48/FLAG34e4499a3 [2018-11-23 02:22:35,994 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 02:22:35,995 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/sv-benchmarks/c/array-memsafety/mult_array-alloca_true-valid-memsafety_true-termination.i [2018-11-23 02:22:36,001 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/data/135ac33e1/e62faee768614bebbb39b51c698c3a48/FLAG34e4499a3 [2018-11-23 02:22:36,012 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/data/135ac33e1/e62faee768614bebbb39b51c698c3a48 [2018-11-23 02:22:36,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 02:22:36,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 02:22:36,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 02:22:36,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 02:22:36,020 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 02:22:36,020 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1197ff04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36, skipping insertion in model container [2018-11-23 02:22:36,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,031 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 02:22:36,061 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 02:22:36,255 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:22:36,262 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 02:22:36,329 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 02:22:36,358 INFO L195 MainTranslator]: Completed translation [2018-11-23 02:22:36,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36 WrapperNode [2018-11-23 02:22:36,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 02:22:36,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 02:22:36,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 02:22:36,360 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 02:22:36,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 02:22:36,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 02:22:36,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 02:22:36,385 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 02:22:36,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... [2018-11-23 02:22:36,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 02:22:36,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 02:22:36,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 02:22:36,400 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 02:22:36,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/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 [2018-11-23 02:22:36,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 02:22:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-23 02:22:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 02:22:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 02:22:36,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 02:22:36,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 02:22:36,587 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 02:22:36,587 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 02:22:36,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:36 BoogieIcfgContainer [2018-11-23 02:22:36,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 02:22:36,588 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 02:22:36,588 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 02:22:36,590 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 02:22:36,591 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 02:22:36,591 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:22:36" (1/3) ... [2018-11-23 02:22:36,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@719d5c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:22:36, skipping insertion in model container [2018-11-23 02:22:36,592 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 02:22:36,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:36" (2/3) ... [2018-11-23 02:22:36,592 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@719d5c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:22:36, skipping insertion in model container [2018-11-23 02:22:36,592 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 02:22:36,592 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:36" (3/3) ... [2018-11-23 02:22:36,594 INFO L375 chiAutomizerObserver]: Analyzing ICFG mult_array-alloca_true-valid-memsafety_true-termination.i [2018-11-23 02:22:36,632 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 02:22:36,632 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 02:22:36,632 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 02:22:36,632 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 02:22:36,632 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 02:22:36,633 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 02:22:36,633 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 02:22:36,633 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 02:22:36,633 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 02:22:36,641 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-23 02:22:36,657 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 02:22:36,657 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:22:36,657 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:22:36,661 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:22:36,661 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 02:22:36,661 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 02:22:36,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2018-11-23 02:22:36,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-23 02:22:36,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:22:36,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:22:36,663 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:22:36,663 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 02:22:36,670 INFO L794 eck$LassoCheckResult]: Stem: 13#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 12#L-1true havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 10#L543true assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 14#L543-2true main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L545true assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 11#L545-2true call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 3#L548true assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 6#L549-3true [2018-11-23 02:22:36,670 INFO L796 eck$LassoCheckResult]: Loop: 6#L549-3true assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 5#L549-2true main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 6#L549-3true [2018-11-23 02:22:36,675 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:36,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1806815374, now seen corresponding path program 1 times [2018-11-23 02:22:36,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:36,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:36,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:36,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:36,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:36,731 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:36,731 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:36,731 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:36,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:36,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:36,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:36,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1891, now seen corresponding path program 1 times [2018-11-23 02:22:36,803 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:36,803 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:36,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:36,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:36,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:36,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:36,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787760, now seen corresponding path program 1 times [2018-11-23 02:22:36,826 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:36,826 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:36,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:36,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:36,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:36,830 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:36,831 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:36,831 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:36,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:36,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:37,158 WARN L180 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2018-11-23 02:22:37,219 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 02:22:37,219 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 02:22:37,220 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 02:22:37,220 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 02:22:37,220 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 02:22:37,220 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 02:22:37,220 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 02:22:37,220 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 02:22:37,221 INFO L131 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca_true-valid-memsafety_true-termination.i_Iteration1_Lasso [2018-11-23 02:22:37,221 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 02:22:37,221 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 02:22:37,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,243 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,249 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,255 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:37,649 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 02:22:37,652 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 02:22:37,654 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 [2018-11-23 02:22:37,655 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,655 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,656 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,656 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,656 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,657 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,658 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,660 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,661 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 [2018-11-23 02:22:37,661 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,661 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,661 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,662 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,662 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,662 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,662 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,663 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,663 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 [2018-11-23 02:22:37,664 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,664 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,664 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,664 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,665 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,665 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,665 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,666 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,666 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 [2018-11-23 02:22:37,667 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,667 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,667 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,667 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,667 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,668 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,668 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,669 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,669 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 [2018-11-23 02:22:37,670 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,670 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,671 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,671 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,672 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,672 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 [2018-11-23 02:22:37,672 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,673 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,675 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,675 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,680 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,680 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 [2018-11-23 02:22:37,681 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,681 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,681 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,681 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,683 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,683 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,686 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,686 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 [2018-11-23 02:22:37,687 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,687 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,687 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,687 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,687 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,688 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,688 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,688 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,689 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 [2018-11-23 02:22:37,689 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,689 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,689 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,689 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,691 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,691 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,695 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,695 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 [2018-11-23 02:22:37,695 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,696 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,696 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,696 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,696 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,697 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,697 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,697 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,698 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 [2018-11-23 02:22:37,698 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,698 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-23 02:22:37,698 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,699 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,700 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-23 02:22:37,701 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,714 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,715 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 [2018-11-23 02:22:37,715 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,715 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-23 02:22:37,716 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,716 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,718 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-23 02:22:37,718 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,725 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,726 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 [2018-11-23 02:22:37,726 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,726 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:37,726 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,727 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,727 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,727 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:37,727 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:37,728 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,728 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 [2018-11-23 02:22:37,729 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,729 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,729 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,729 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,730 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,730 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,734 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,734 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 [2018-11-23 02:22:37,735 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,735 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,735 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,735 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,736 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,736 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,739 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,739 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 [2018-11-23 02:22:37,740 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,740 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,740 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,740 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,741 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,741 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,751 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:37,751 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 [2018-11-23 02:22:37,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:37,752 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:37,752 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:37,752 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:37,755 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 02:22:37,755 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 02:22:37,795 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 02:22:37,827 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 02:22:37,827 INFO L444 ModelExtractionUtils]: 22 out of 28 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 02:22:37,829 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 02:22:37,830 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 02:22:37,831 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 02:22:37,831 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~arr~0.offset, ULTIMATE.start_main_~i~0, v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1) = -1*ULTIMATE.start_main_~arr~0.offset - 4*ULTIMATE.start_main_~i~0 + 1*v_rep(select #length ULTIMATE.start_main_~arr~0.base)_1 Supporting invariants [] [2018-11-23 02:22:37,854 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2018-11-23 02:22:37,859 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 02:22:37,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:22:37,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:22:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:22:37,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:22:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:22:37,915 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 [2018-11-23 02:22:37,916 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states. Second operand 3 states. [2018-11-23 02:22:37,956 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states.. Second operand 3 states. Result 35 states and 46 transitions. Complement of second has 7 states. [2018-11-23 02:22:37,956 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 [2018-11-23 02:22:37,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 02:22:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 32 transitions. [2018-11-23 02:22:37,959 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-23 02:22:37,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:22:37,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-23 02:22:37,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:22:37,960 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 32 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-23 02:22:37,960 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:22:37,961 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 46 transitions. [2018-11-23 02:22:37,963 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 02:22:37,966 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 13 states and 17 transitions. [2018-11-23 02:22:37,967 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-23 02:22:37,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-23 02:22:37,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2018-11-23 02:22:37,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 02:22:37,968 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 02:22:37,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2018-11-23 02:22:37,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-11-23 02:22:37,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 02:22:37,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-11-23 02:22:37,984 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 02:22:37,984 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 02:22:37,984 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 02:22:37,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2018-11-23 02:22:37,985 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 02:22:37,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:22:37,985 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:22:37,985 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:22:37,985 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 02:22:37,986 INFO L794 eck$LassoCheckResult]: Stem: 135#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 129#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 130#L543 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 136#L543-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 137#L545 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 140#L545-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 131#L548 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 132#L549-3 assume !(main_~i~0 < main_~length~0); 138#L549-4 main_~j~0 := 0; 139#L552-3 [2018-11-23 02:22:37,986 INFO L796 eck$LassoCheckResult]: Loop: 139#L552-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 141#L552-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 139#L552-3 [2018-11-23 02:22:37,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1182787702, now seen corresponding path program 1 times [2018-11-23 02:22:37,986 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:37,986 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:37,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:37,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:37,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:37,988 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:37,989 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:37,989 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:37,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:22:38,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:22:38,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:22:38,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 02:22:38,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 02:22:38,039 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 02:22:38,039 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:38,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 1 times [2018-11-23 02:22:38,039 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:38,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:38,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,041 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:38,041 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:38,041 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:38,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 02:22:38,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 02:22:38,136 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 4 states. [2018-11-23 02:22:38,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 02:22:38,162 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2018-11-23 02:22:38,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 02:22:38,163 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2018-11-23 02:22:38,164 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 02:22:38,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 14 states and 17 transitions. [2018-11-23 02:22:38,164 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-23 02:22:38,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-23 02:22:38,165 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 17 transitions. [2018-11-23 02:22:38,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 02:22:38,165 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-11-23 02:22:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 17 transitions. [2018-11-23 02:22:38,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-23 02:22:38,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 02:22:38,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2018-11-23 02:22:38,166 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-23 02:22:38,166 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 16 transitions. [2018-11-23 02:22:38,166 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 02:22:38,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 16 transitions. [2018-11-23 02:22:38,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 02:22:38,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 02:22:38,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 02:22:38,167 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 02:22:38,168 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 02:22:38,168 INFO L794 eck$LassoCheckResult]: Stem: 191#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 187#L-1 havoc main_#res;havoc main_#t~nondet2, main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~malloc5.base, main_#t~malloc5.offset, main_#t~nondet7, main_#t~post6, main_#t~mem9, main_#t~post8, main_~i~0, main_~j~0, main_~length~0, main_~fac~0, main_~arr~0.base, main_~arr~0.offset, main_~arr2~0.base, main_~arr2~0.offset;havoc main_~i~0;havoc main_~j~0;main_~length~0 := main_#t~nondet2;havoc main_#t~nondet2; 188#L543 assume !(main_~length~0 < 1 || main_~length~0 >= 536870911); 194#L543-2 main_~fac~0 := main_#t~nondet3;havoc main_#t~nondet3; 195#L545 assume !(main_~fac~0 < 1 || main_~fac~0 >= 2147483647 / (4 * main_~length~0)); 197#L545-2 call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.alloc(4 * main_~length~0);main_~arr~0.base, main_~arr~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;call main_#t~malloc5.base, main_#t~malloc5.offset := #Ultimate.alloc(4 * (main_~fac~0 * main_~length~0));main_~arr2~0.base, main_~arr2~0.offset := main_#t~malloc5.base, main_#t~malloc5.offset; 189#L548 assume !((main_~arr~0.base == 0 && main_~arr~0.offset == 0) || (main_~arr2~0.base == 0 && main_~arr2~0.offset == 0));main_~i~0 := 0; 190#L549-3 assume !!(main_~i~0 < main_~length~0);call write~int(main_#t~nondet7, main_~arr~0.base, main_~arr~0.offset + 4 * main_~i~0, 4);havoc main_#t~nondet7; 192#L549-2 main_#t~post6 := main_~i~0;main_~i~0 := 1 + main_#t~post6;havoc main_#t~post6; 193#L549-3 assume !(main_~i~0 < main_~length~0); 196#L549-4 main_~j~0 := 0; 198#L552-3 [2018-11-23 02:22:38,168 INFO L796 eck$LassoCheckResult]: Loop: 198#L552-3 assume !!(main_~j~0 < main_~length~0 * main_~fac~0);call main_#t~mem9 := read~int(main_~arr~0.base, main_~arr~0.offset + 4 * (if main_~i~0 < 0 && 0 != main_~i~0 % main_~length~0 then (if main_~length~0 < 0 then main_~i~0 % main_~length~0 + main_~length~0 else main_~i~0 % main_~length~0 - main_~length~0) else main_~i~0 % main_~length~0), 4);call write~int(main_#t~mem9, main_~arr2~0.base, main_~arr2~0.offset + 4 * main_~j~0, 4);havoc main_#t~mem9; 199#L552-2 main_#t~post8 := main_~j~0;main_~j~0 := 1 + main_#t~post8;havoc main_#t~post8; 198#L552-3 [2018-11-23 02:22:38,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:38,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1507295208, now seen corresponding path program 1 times [2018-11-23 02:22:38,168 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:38,168 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:38,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,171 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:38,171 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:38,171 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:38,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:38,215 INFO L82 PathProgramCache]: Analyzing trace with hash 2339, now seen corresponding path program 2 times [2018-11-23 02:22:38,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:38,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:38,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,217 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:38,217 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:38,217 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:38,245 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 02:22:38,250 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 02:22:38,250 INFO L250 tOrderPrioritization]: Conjunction of SSA is sat [2018-11-23 02:22:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:38,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1106714758, now seen corresponding path program 1 times [2018-11-23 02:22:38,269 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 02:22:38,269 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 02:22:38,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,270 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 02:22:38,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 02:22:38,272 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-23 02:22:38,272 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-23 02:22:38,272 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8aa87b71-b8f7-4325-8dc0-3b668780288c/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-23 02:22:38,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 02:22:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 02:22:38,584 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2018-11-23 02:22:38,663 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 02:22:38,663 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 02:22:38,663 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 02:22:38,664 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 02:22:38,664 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 02:22:38,664 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 02:22:38,664 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 02:22:38,664 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 02:22:38,664 INFO L131 ssoRankerPreferences]: Filename of dumped script: mult_array-alloca_true-valid-memsafety_true-termination.i_Iteration3_Lasso [2018-11-23 02:22:38,664 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 02:22:38,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 02:22:38,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,672 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,914 WARN L180 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2018-11-23 02:22:38,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,992 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:38,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 02:22:39,137 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2018-11-23 02:22:39,301 WARN L180 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 48 [2018-11-23 02:22:39,503 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 02:22:39,503 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 02:22:39,503 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 [2018-11-23 02:22:39,504 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:39,504 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:39,504 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:39,504 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:39,504 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:39,505 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:39,505 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:39,505 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:39,508 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 [2018-11-23 02:22:39,509 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:39,509 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 02:22:39,509 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:39,509 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 02:22:39,509 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:39,510 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 02:22:39,510 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 02:22:39,510 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 02:22:39,511 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 [2018-11-23 02:22:39,511 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 02:22:39,511 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 02:22:39,511 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 02:22:39,511 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 02:22:39,522 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2018-11-23 02:22:39,523 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-23 02:22:39,624 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 02:22:39,650 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 02:22:39,650 INFO L444 ModelExtractionUtils]: 61 out of 66 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 02:22:39,650 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 02:22:39,652 INFO L440 nArgumentSynthesizer]: Removed 4 redundant supporting invariants from a total of 4. [2018-11-23 02:22:39,652 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 02:22:39,652 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1, ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~arr2~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~arr2~0.base)_1 - 4*ULTIMATE.start_main_~j~0 - 1*ULTIMATE.start_main_~arr2~0.offset Supporting invariants [] [2018-11-23 02:22:39,678 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2018-11-23 02:22:39,680 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-23 02:22:39,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 02:22:39,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:22:39,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:22:39,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 02:22:39,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 02:22:39,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 02:22:39,727 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 [2018-11-23 02:22:39,728 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-23 02:22:39,737 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 16 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 19 transitions. Complement of second has 4 states. [2018-11-23 02:22:39,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 02:22:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 02:22:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 15 transitions. [2018-11-23 02:22:39,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-23 02:22:39,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:22:39,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 13 letters. Loop has 2 letters. [2018-11-23 02:22:39,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:22:39,740 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 15 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-23 02:22:39,740 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 02:22:39,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2018-11-23 02:22:39,740 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 02:22:39,741 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-23 02:22:39,741 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 02:22:39,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 02:22:39,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 02:22:39,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 02:22:39,741 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:22:39,741 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:22:39,741 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 02:22:39,741 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 02:22:39,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 02:22:39,741 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 02:22:39,741 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 02:22:39,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:22:39 BoogieIcfgContainer [2018-11-23 02:22:39,751 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 02:22:39,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 02:22:39,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 02:22:39,752 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 02:22:39,752 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:36" (3/4) ... [2018-11-23 02:22:39,755 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 02:22:39,755 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 02:22:39,756 INFO L168 Benchmark]: Toolchain (without parser) took 3740.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 173.0 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -129.6 MB). Peak memory consumption was 43.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:22:39,756 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 02:22:39,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2018-11-23 02:22:39,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.82 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 02:22:39,757 INFO L168 Benchmark]: Boogie Preprocessor took 14.91 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. [2018-11-23 02:22:39,758 INFO L168 Benchmark]: RCFGBuilder took 188.04 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-23 02:22:39,758 INFO L168 Benchmark]: BuchiAutomizer took 3163.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 41.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. [2018-11-23 02:22:39,759 INFO L168 Benchmark]: Witness Printer took 3.61 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. [2018-11-23 02:22:39,761 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.82 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.91 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. * RCFGBuilder took 188.04 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: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3163.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 41.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.2 MB). Peak memory consumption was 57.1 MB. Max. memory is 11.5 GB. * Witness Printer took 3.61 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * arr + -4 * i + unknown-#length-unknown[arr] and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[arr2] + -4 * j + -1 * arr2 and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 13 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 41 SDslu, 17 SDs, 0 SdLazy, 30 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU1 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital212 mio100 ax100 hnf98 lsp94 ukn89 mio100 lsp71 div158 bol100 ite166 ukn100 eq135 hnf94 smp51 dnf111 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 141ms VariablesStem: 14 VariablesLoop: 10 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...