./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/array-examples/standard_vararg_true-unreach-call_ground_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_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/array-examples/standard_vararg_true-unreach-call_ground_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/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 0ec1e9b4474a625821a91c382460b2fed74a8091 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 22:38:24,755 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 22:38:24,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 22:38:24,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 22:38:24,764 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 22:38:24,764 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 22:38:24,765 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 22:38:24,766 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 22:38:24,767 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 22:38:24,768 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 22:38:24,769 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 22:38:24,769 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 22:38:24,769 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 22:38:24,770 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 22:38:24,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 22:38:24,771 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 22:38:24,772 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 22:38:24,773 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 22:38:24,775 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 22:38:24,776 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 22:38:24,776 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 22:38:24,777 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 22:38:24,779 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 22:38:24,779 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 22:38:24,779 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 22:38:24,780 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 22:38:24,781 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 22:38:24,781 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 22:38:24,782 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 22:38:24,782 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 22:38:24,783 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 22:38:24,783 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 22:38:24,783 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 22:38:24,783 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 22:38:24,784 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 22:38:24,785 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 22:38:24,785 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-22 22:38:24,796 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 22:38:24,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 22:38:24,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 22:38:24,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 22:38:24,797 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 22:38:24,797 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 22:38:24,798 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 22:38:24,798 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 22:38:24,799 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 22:38:24,800 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 22:38:24,800 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 22:38:24,800 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 22:38:24,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 22:38:24,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 22:38:24,800 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 22:38:24,800 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 22:38:24,801 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 22:38:24,801 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 22:38:24,801 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 22:38:24,802 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_7c010a1b-7180-4a58-93f1-8ca7b37424a5/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 -> 0ec1e9b4474a625821a91c382460b2fed74a8091 [2018-11-22 22:38:24,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 22:38:24,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 22:38:24,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 22:38:24,837 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 22:38:24,838 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 22:38:24,838 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/../../sv-benchmarks/c/array-examples/standard_vararg_true-unreach-call_ground_true-termination.i [2018-11-22 22:38:24,881 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/data/57534d0c0/5cab81d21d9c4754a02a85694effa454/FLAG33a4667cf [2018-11-22 22:38:25,194 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 22:38:25,195 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/sv-benchmarks/c/array-examples/standard_vararg_true-unreach-call_ground_true-termination.i [2018-11-22 22:38:25,200 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/data/57534d0c0/5cab81d21d9c4754a02a85694effa454/FLAG33a4667cf [2018-11-22 22:38:25,212 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/bin-2019/uautomizer/data/57534d0c0/5cab81d21d9c4754a02a85694effa454 [2018-11-22 22:38:25,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 22:38:25,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 22:38:25,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 22:38:25,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 22:38:25,220 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 22:38:25,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342d28a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25, skipping insertion in model container [2018-11-22 22:38:25,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 22:38:25,246 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 22:38:25,373 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:38:25,375 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 22:38:25,386 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 22:38:25,400 INFO L195 MainTranslator]: Completed translation [2018-11-22 22:38:25,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25 WrapperNode [2018-11-22 22:38:25,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 22:38:25,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 22:38:25,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 22:38:25,401 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 22:38:25,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 22:38:25,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 22:38:25,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 22:38:25,421 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 22:38:25,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... [2018-11-22 22:38:25,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 22:38:25,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 22:38:25,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 22:38:25,469 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 22:38:25,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c010a1b-7180-4a58-93f1-8ca7b37424a5/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 [2018-11-22 22:38:25,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 22:38:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 22:38:25,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 22:38:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-22 22:38:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 22:38:25,607 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 22:38:25,607 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-22 22:38:25,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:38:25 BoogieIcfgContainer [2018-11-22 22:38:25,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 22:38:25,608 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 22:38:25,608 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 22:38:25,611 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 22:38:25,611 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:38:25,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 10:38:25" (1/3) ... [2018-11-22 22:38:25,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fc6cffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 10:38:25, skipping insertion in model container [2018-11-22 22:38:25,612 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:38:25,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 10:38:25" (2/3) ... [2018-11-22 22:38:25,612 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@fc6cffe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 10:38:25, skipping insertion in model container [2018-11-22 22:38:25,612 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 22:38:25,612 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:38:25" (3/3) ... [2018-11-22 22:38:25,614 INFO L375 chiAutomizerObserver]: Analyzing ICFG standard_vararg_true-unreach-call_ground_true-termination.i [2018-11-22 22:38:25,650 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 22:38:25,651 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 22:38:25,651 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 22:38:25,651 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 22:38:25,651 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 22:38:25,651 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 22:38:25,651 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 22:38:25,651 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 22:38:25,651 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 22:38:25,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-22 22:38:25,676 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-22 22:38:25,676 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:38:25,676 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:38:25,680 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 22:38:25,680 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:38:25,680 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 22:38:25,680 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-22 22:38:25,681 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-22 22:38:25,681 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:38:25,681 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:38:25,682 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 22:38:25,682 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 22:38:25,686 INFO L794 eck$LassoCheckResult]: Stem: 9#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 7#L-1true havoc main_#res;havoc main_#t~post1, main_#t~mem0, main_#t~mem3, main_#t~post2, main_~#aa~0.base, main_~#aa~0.offset, main_~a~0, main_~x~0;call main_~#aa~0.base, main_~#aa~0.offset := #Ultimate.alloc(400000);main_~a~0 := 0; 15#L6-3true [2018-11-22 22:38:25,686 INFO L796 eck$LassoCheckResult]: Loop: 15#L6-3true call main_#t~mem0 := read~int(main_~#aa~0.base, main_~#aa~0.offset + 4 * main_~a~0, 4); 3#L6-1true assume !!(main_#t~mem0 >= 0);havoc main_#t~mem0;main_#t~post1 := main_~a~0;main_~a~0 := 1 + main_#t~post1;havoc main_#t~post1; 15#L6-3true [2018-11-22 22:38:25,690 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:25,690 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-22 22:38:25,691 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:25,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:25,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:25,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:25,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:25,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:25,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2018-11-22 22:38:25,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:25,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:25,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:25,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:25,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:25,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:25,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:25,778 INFO L82 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2018-11-22 22:38:25,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:25,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:25,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:25,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:25,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:25,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:25,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:25,892 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:38:25,893 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:38:25,894 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:38:25,894 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:38:25,894 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:38:25,895 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:38:25,895 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:38:25,895 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:38:25,896 INFO L131 ssoRankerPreferences]: Filename of dumped script: standard_vararg_true-unreach-call_ground_true-termination.i_Iteration1_Lasso [2018-11-22 22:38:25,896 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:38:25,896 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:38:25,915 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:25,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:25,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:25,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:25,993 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:25,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,001 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,004 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,006 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,124 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:38:26,128 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:38:26,130 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 [2018-11-22 22:38:26,131 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,132 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-22 22:38:26,132 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,132 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,135 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-22 22:38:26,135 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:38:26,144 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,144 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 [2018-11-22 22:38:26,145 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,145 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,145 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,145 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,147 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:38:26,147 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:38:26,150 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,151 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 [2018-11-22 22:38:26,151 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,151 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,151 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,152 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,153 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:38:26,153 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:38:26,163 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,163 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 [2018-11-22 22:38:26,163 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,164 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,164 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,164 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,166 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:38:26,167 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:38:26,189 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:38:26,220 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2018-11-22 22:38:26,221 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-22 22:38:26,223 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:38:26,224 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-22 22:38:26,224 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:38:26,225 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#aa~0.base)_1, ULTIMATE.start_main_~a~0, ULTIMATE.start_main_~#aa~0.offset) = 1*v_rep(select #length ULTIMATE.start_main_~#aa~0.base)_1 - 4*ULTIMATE.start_main_~a~0 - 1*ULTIMATE.start_main_~#aa~0.offset Supporting invariants [] [2018-11-22 22:38:26,230 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2018-11-22 22:38:26,234 WARN L1272 BoogieBacktranslator]: unknown boogie variable #length [2018-11-22 22:38:26,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:38:26,256 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:38:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:38:26,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:38:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:38:26,292 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 [2018-11-22 22:38:26,293 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-22 22:38:26,326 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 33 states and 42 transitions. Complement of second has 6 states. [2018-11-22 22:38:26,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 22:38:26,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:38:26,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 27 transitions. [2018-11-22 22:38:26,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-22 22:38:26,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:38:26,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-22 22:38:26,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:38:26,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 27 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-22 22:38:26,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:38:26,331 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 42 transitions. [2018-11-22 22:38:26,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 22:38:26,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 11 states and 13 transitions. [2018-11-22 22:38:26,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-22 22:38:26,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-22 22:38:26,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2018-11-22 22:38:26,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:38:26,336 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-22 22:38:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2018-11-22 22:38:26,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-22 22:38:26,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-22 22:38:26,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-11-22 22:38:26,352 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-22 22:38:26,352 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-11-22 22:38:26,352 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 22:38:26,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2018-11-22 22:38:26,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 22:38:26,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:38:26,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:38:26,353 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-22 22:38:26,353 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-22 22:38:26,353 INFO L794 eck$LassoCheckResult]: Stem: 96#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 90#L-1 havoc main_#res;havoc main_#t~post1, main_#t~mem0, main_#t~mem3, main_#t~post2, main_~#aa~0.base, main_~#aa~0.offset, main_~a~0, main_~x~0;call main_~#aa~0.base, main_~#aa~0.offset := #Ultimate.alloc(400000);main_~a~0 := 0; 91#L6-3 call main_#t~mem0 := read~int(main_~#aa~0.base, main_~#aa~0.offset + 4 * main_~a~0, 4); 92#L6-1 assume !(main_#t~mem0 >= 0);havoc main_#t~mem0; 93#L6-4 havoc main_~x~0;main_~x~0 := 0; 97#L10-3 [2018-11-22 22:38:26,353 INFO L796 eck$LassoCheckResult]: Loop: 97#L10-3 assume !!(main_~x~0 < main_~a~0);call main_#t~mem3 := read~int(main_~#aa~0.base, main_~#aa~0.offset + 4 * main_~x~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem3 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 98#L2 assume !(0 == __VERIFIER_assert_~cond); 88#L2-3 havoc main_#t~mem3; 89#L10-2 main_#t~post2 := main_~x~0;main_~x~0 := 1 + main_#t~post2;havoc main_#t~post2; 97#L10-3 [2018-11-22 22:38:26,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,353 INFO L82 PathProgramCache]: Analyzing trace with hash 28695786, now seen corresponding path program 1 times [2018-11-22 22:38:26,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:26,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:26,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:26,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1669354, now seen corresponding path program 1 times [2018-11-22 22:38:26,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:26,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:26,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:26,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1213512019, now seen corresponding path program 1 times [2018-11-22 22:38:26,370 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:26,370 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:26,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:26,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:38:26,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:38:26,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 22:38:26,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 22:38:26,564 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2018-11-22 22:38:26,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 22:38:26,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-22 22:38:26,568 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-22 22:38:26,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 22:38:26,579 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-22 22:38:26,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 22:38:26,580 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2018-11-22 22:38:26,581 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 22:38:26,581 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 12 states and 13 transitions. [2018-11-22 22:38:26,581 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-22 22:38:26,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-22 22:38:26,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-11-22 22:38:26,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 22:38:26,582 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-22 22:38:26,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-11-22 22:38:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-11-22 22:38:26,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-22 22:38:26,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2018-11-22 22:38:26,583 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-11-22 22:38:26,583 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2018-11-22 22:38:26,583 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 22:38:26,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2018-11-22 22:38:26,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-22 22:38:26,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 22:38:26,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 22:38:26,588 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-11-22 22:38:26,588 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-22 22:38:26,588 INFO L794 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 125#L-1 havoc main_#res;havoc main_#t~post1, main_#t~mem0, main_#t~mem3, main_#t~post2, main_~#aa~0.base, main_~#aa~0.offset, main_~a~0, main_~x~0;call main_~#aa~0.base, main_~#aa~0.offset := #Ultimate.alloc(400000);main_~a~0 := 0; 126#L6-3 call main_#t~mem0 := read~int(main_~#aa~0.base, main_~#aa~0.offset + 4 * main_~a~0, 4); 129#L6-1 assume !!(main_#t~mem0 >= 0);havoc main_#t~mem0;main_#t~post1 := main_~a~0;main_~a~0 := 1 + main_#t~post1;havoc main_#t~post1; 130#L6-3 call main_#t~mem0 := read~int(main_~#aa~0.base, main_~#aa~0.offset + 4 * main_~a~0, 4); 127#L6-1 assume !(main_#t~mem0 >= 0);havoc main_#t~mem0; 128#L6-4 havoc main_~x~0;main_~x~0 := 0; 132#L10-3 [2018-11-22 22:38:26,588 INFO L796 eck$LassoCheckResult]: Loop: 132#L10-3 assume !!(main_~x~0 < main_~a~0);call main_#t~mem3 := read~int(main_~#aa~0.base, main_~#aa~0.offset + 4 * main_~x~0, 4);__VERIFIER_assert_#in~cond := (if main_#t~mem3 >= 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 133#L2 assume !(0 == __VERIFIER_assert_~cond); 123#L2-3 havoc main_#t~mem3; 124#L10-2 main_#t~post2 := main_~x~0;main_~x~0 := 1 + main_#t~post2;havoc main_#t~post2; 132#L10-3 [2018-11-22 22:38:26,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1806897829, now seen corresponding path program 1 times [2018-11-22 22:38:26,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:26,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:26,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:26,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,599 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1669354, now seen corresponding path program 2 times [2018-11-22 22:38:26,599 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:26,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:26,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 22:38:26,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1627036046, now seen corresponding path program 1 times [2018-11-22 22:38:26,607 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 22:38:26,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 22:38:26,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,608 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 22:38:26,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 22:38:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 22:38:26,759 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 22:38:26,759 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 22:38:26,759 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 22:38:26,759 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 22:38:26,759 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 22:38:26,759 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 22:38:26,759 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 22:38:26,759 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 22:38:26,759 INFO L131 ssoRankerPreferences]: Filename of dumped script: standard_vararg_true-unreach-call_ground_true-termination.i_Iteration3_Lasso [2018-11-22 22:38:26,760 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 22:38:26,760 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 22:38:26,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,776 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 22:38:26,924 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 22:38:26,924 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 22:38:26,924 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 [2018-11-22 22:38:26,925 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,925 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:38:26,925 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,925 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,926 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,926 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:38:26,926 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:38:26,926 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,927 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 [2018-11-22 22:38:26,927 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,927 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,927 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,927 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,928 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:38:26,928 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:38:26,930 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,931 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 [2018-11-22 22:38:26,931 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,931 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:38:26,931 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,932 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,932 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,932 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:38:26,932 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:38:26,933 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,933 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 [2018-11-22 22:38:26,934 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,934 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:38:26,934 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,934 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,934 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,935 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:38:26,935 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:38:26,935 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,936 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 [2018-11-22 22:38:26,936 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,936 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:38:26,936 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,937 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,937 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,938 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:38:26,938 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:38:26,940 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,940 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 [2018-11-22 22:38:26,941 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,942 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 22:38:26,942 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,942 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,942 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,942 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 22:38:26,943 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 22:38:26,943 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 22:38:26,943 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 [2018-11-22 22:38:26,944 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 22:38:26,944 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 22:38:26,944 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 22:38:26,944 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 22:38:26,946 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 22:38:26,946 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 22:38:26,963 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 22:38:26,975 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-22 22:38:26,975 INFO L444 ModelExtractionUtils]: 11 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-22 22:38:26,976 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 22:38:26,976 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-22 22:38:26,977 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 22:38:26,977 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~a~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~a~0 Supporting invariants [] [2018-11-22 22:38:26,980 INFO L297 tatePredicateManager]: 2 out of 2 supporting invariants were superfluous and have been removed [2018-11-22 22:38:26,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 22:38:26,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:38:26,998 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:38:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 22:38:27,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 22:38:27,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 22:38:27,014 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 [2018-11-22 22:38:27,014 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-22 22:38:27,022 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 17 transitions. Complement of second has 4 states. [2018-11-22 22:38:27,023 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 [2018-11-22 22:38:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 22:38:27,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-22 22:38:27,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-22 22:38:27,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:38:27,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 11 letters. Loop has 4 letters. [2018-11-22 22:38:27,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:38:27,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 8 letters. [2018-11-22 22:38:27,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 22:38:27,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2018-11-22 22:38:27,025 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 22:38:27,025 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-22 22:38:27,025 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 22:38:27,025 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 22:38:27,025 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 22:38:27,026 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 22:38:27,026 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:38:27,026 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:38:27,026 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 22:38:27,026 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 22:38:27,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 22:38:27,026 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 22:38:27,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 22:38:27,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 10:38:27 BoogieIcfgContainer [2018-11-22 22:38:27,032 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 22:38:27,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 22:38:27,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 22:38:27,032 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 22:38:27,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 10:38:25" (3/4) ... [2018-11-22 22:38:27,035 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 22:38:27,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 22:38:27,036 INFO L168 Benchmark]: Toolchain (without parser) took 1820.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 960.2 MB in the beginning and 870.9 MB in the end (delta: 89.4 MB). Peak memory consumption was 185.8 MB. Max. memory is 11.5 GB. [2018-11-22 22:38:27,037 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:38:27,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 184.26 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:38:27,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.15 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:38:27,039 INFO L168 Benchmark]: Boogie Preprocessor took 47.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-22 22:38:27,041 INFO L168 Benchmark]: RCFGBuilder took 138.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. [2018-11-22 22:38:27,041 INFO L168 Benchmark]: BuchiAutomizer took 1423.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 870.9 MB in the end (delta: 204.7 MB). Peak memory consumption was 204.7 MB. Max. memory is 11.5 GB. [2018-11-22 22:38:27,042 INFO L168 Benchmark]: Witness Printer took 3.62 ms. Allocated memory is still 1.1 GB. Free memory is still 870.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 22:38:27,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 184.26 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.15 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 946.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 138.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1423.64 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 870.9 MB in the end (delta: 204.7 MB). Peak memory consumption was 204.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.62 ms. Allocated memory is still 1.1 GB. Free memory is still 870.9 MB. 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 * 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 unknown-#length-unknown[aa] + -4 * a + -1 * aa and consists of 4 locations. One deterministic module has affine ranking function -1 * x + a 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 1.3s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 2. 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 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 20 SDslu, 15 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital94 mio100 ax100 hnf100 lsp90 ukn64 mio100 lsp62 div100 bol100 ite100 ukn100 eq158 hnf91 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 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...