./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/list-ext-properties/test-0232_1_false-valid-memtrack_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_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/list-ext-properties/test-0232_1_false-valid-memtrack_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/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 dd0b9292151174331f3cf63e5ad3d651d29dfbcc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:15:17,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:15:17,316 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:15:17,325 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:15:17,326 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:15:17,326 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:15:17,327 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:15:17,329 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:15:17,330 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:15:17,331 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:15:17,331 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:15:17,332 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:15:17,332 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:15:17,333 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:15:17,334 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:15:17,334 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:15:17,335 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:15:17,337 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:15:17,338 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:15:17,339 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:15:17,340 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:15:17,341 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:15:17,343 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:15:17,343 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:15:17,343 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:15:17,344 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:15:17,345 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:15:17,345 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:15:17,346 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:15:17,347 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:15:17,347 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:15:17,347 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:15:17,348 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:15:17,348 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:15:17,349 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:15:17,349 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:15:17,349 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-23 14:15:17,361 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:15:17,362 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:15:17,363 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:15:17,363 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:15:17,363 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:15:17,363 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 14:15:17,363 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 14:15:17,363 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 14:15:17,364 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 14:15:17,364 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 14:15:17,364 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 14:15:17,364 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:15:17,364 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:15:17,364 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 14:15:17,364 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:15:17,365 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:15:17,365 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:15:17,365 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 14:15:17,365 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 14:15:17,365 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 14:15:17,365 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:15:17,366 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:15:17,366 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 14:15:17,366 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:15:17,366 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 14:15:17,366 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:15:17,366 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:15:17,367 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 14:15:17,367 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:15:17,367 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:15:17,367 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 14:15:17,368 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 14:15:17,368 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_9921bf92-a903-413d-a895-8d2f2764f46e/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 -> dd0b9292151174331f3cf63e5ad3d651d29dfbcc [2018-11-23 14:15:17,394 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:15:17,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:15:17,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:15:17,409 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:15:17,410 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:15:17,410 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/../../sv-benchmarks/c/list-ext-properties/test-0232_1_false-valid-memtrack_true-termination.i [2018-11-23 14:15:17,461 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/data/de47d472c/e1a2ebc164c547d78ede0bbfa72f06aa/FLAG0b813f04a [2018-11-23 14:15:17,871 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:15:17,871 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/sv-benchmarks/c/list-ext-properties/test-0232_1_false-valid-memtrack_true-termination.i [2018-11-23 14:15:17,877 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/data/de47d472c/e1a2ebc164c547d78ede0bbfa72f06aa/FLAG0b813f04a [2018-11-23 14:15:17,885 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/data/de47d472c/e1a2ebc164c547d78ede0bbfa72f06aa [2018-11-23 14:15:17,887 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:15:17,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:15:17,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:15:17,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:15:17,892 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:15:17,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:17" (1/1) ... [2018-11-23 14:15:17,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7befe0c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:17, skipping insertion in model container [2018-11-23 14:15:17,894 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:15:17" (1/1) ... [2018-11-23 14:15:17,900 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:15:17,923 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:15:18,103 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:15:18,108 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:15:18,176 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:15:18,201 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:15:18,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18 WrapperNode [2018-11-23 14:15:18,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:15:18,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:15:18,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:15:18,202 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:15:18,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,218 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:15:18,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:15:18,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:15:18,236 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:15:18,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... [2018-11-23 14:15:18,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:15:18,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:15:18,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:15:18,260 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:15:18,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/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 14:15:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:15:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-11-23 14:15:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-11-23 14:15:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:15:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-11-23 14:15:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:15:18,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:15:18,582 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:15:18,583 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-11-23 14:15:18,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:18 BoogieIcfgContainer [2018-11-23 14:15:18,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:15:18,584 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 14:15:18,584 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 14:15:18,588 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 14:15:18,588 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:15:18,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:15:17" (1/3) ... [2018-11-23 14:15:18,589 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c2aee55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:15:18, skipping insertion in model container [2018-11-23 14:15:18,589 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:15:18,589 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:15:18" (2/3) ... [2018-11-23 14:15:18,590 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c2aee55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:15:18, skipping insertion in model container [2018-11-23 14:15:18,590 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 14:15:18,590 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:15:18" (3/3) ... [2018-11-23 14:15:18,591 INFO L375 chiAutomizerObserver]: Analyzing ICFG test-0232_1_false-valid-memtrack_true-termination.i [2018-11-23 14:15:18,630 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:15:18,630 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 14:15:18,630 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 14:15:18,630 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 14:15:18,630 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:15:18,630 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:15:18,630 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 14:15:18,631 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:15:18,631 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 14:15:18,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-23 14:15:18,656 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 14:15:18,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:18,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:18,660 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:15:18,660 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-23 14:15:18,660 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 14:15:18,661 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-23 14:15:18,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 14:15:18,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:18,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:18,662 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 14:15:18,662 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-23 14:15:18,667 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 8#L-1true havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.alloc(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 13#L639-3true [2018-11-23 14:15:18,667 INFO L796 eck$LassoCheckResult]: Loop: 13#L639-3true append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 5#L630true assume append_#t~mem3.base != 0 || append_#t~mem3.offset != 0;call append_#t~mem4.base, append_#t~mem4.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem5.base, append_#t~mem5.offset := read~$Pointer$(append_#t~mem4.base, 4 + append_#t~mem4.offset, 4);append_#t~ite7.base, append_#t~ite7.offset := append_#t~mem5.base, append_#t~mem5.offset; 9#L630-2true call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 15#L625true main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 10#L639-1true assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 13#L639-3true [2018-11-23 14:15:18,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:18,671 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-23 14:15:18,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:18,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:18,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:18,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:18,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:18,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:18,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:18,742 INFO L82 PathProgramCache]: Analyzing trace with hash 34451375, now seen corresponding path program 1 times [2018-11-23 14:15:18,742 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:18,742 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:18,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:18,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:18,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:18,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:18,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1805890861, now seen corresponding path program 1 times [2018-11-23 14:15:18,778 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:18,778 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:18,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:18,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:18,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:18,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:18,916 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 14:15:18,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:15:18,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:15:19,365 WARN L180 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 123 [2018-11-23 14:15:19,717 WARN L180 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2018-11-23 14:15:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:15:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:15:19,728 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2018-11-23 14:15:19,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:15:19,768 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2018-11-23 14:15:19,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:15:19,770 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2018-11-23 14:15:19,770 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 14:15:19,773 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2018-11-23 14:15:19,773 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-23 14:15:19,773 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-23 14:15:19,774 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2018-11-23 14:15:19,774 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 14:15:19,774 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-23 14:15:19,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2018-11-23 14:15:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-11-23 14:15:19,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-11-23 14:15:19,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2018-11-23 14:15:19,794 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 14:15:19,794 INFO L608 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2018-11-23 14:15:19,794 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 14:15:19,794 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2018-11-23 14:15:19,794 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-23 14:15:19,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:19,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:19,795 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-23 14:15:19,795 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-23 14:15:19,795 INFO L794 eck$LassoCheckResult]: Stem: 56#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 51#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.alloc(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 52#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 59#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.alloc(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 47#L630-2 [2018-11-23 14:15:19,795 INFO L796 eck$LassoCheckResult]: Loop: 47#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 48#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 53#L639-1 assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 55#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 58#L630 assume append_#t~mem3.base != 0 || append_#t~mem3.offset != 0;call append_#t~mem4.base, append_#t~mem4.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem5.base, append_#t~mem5.offset := read~$Pointer$(append_#t~mem4.base, 4 + append_#t~mem4.offset, 4);append_#t~ite7.base, append_#t~ite7.offset := append_#t~mem5.base, append_#t~mem5.offset; 47#L630-2 [2018-11-23 14:15:19,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:19,796 INFO L82 PathProgramCache]: Analyzing trace with hash 925640, now seen corresponding path program 1 times [2018-11-23 14:15:19,796 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:19,796 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:19,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:19,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:19,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:19,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:19,820 INFO L82 PathProgramCache]: Analyzing trace with hash 41102165, now seen corresponding path program 2 times [2018-11-23 14:15:19,820 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:19,820 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:19,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:19,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:19,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:19,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:19,841 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:19,841 INFO L82 PathProgramCache]: Analyzing trace with hash 351588334, now seen corresponding path program 1 times [2018-11-23 14:15:19,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:19,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:19,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:19,842 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:15:19,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:20,348 WARN L180 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 140 [2018-11-23 14:15:21,123 WARN L180 SmtUtils]: Spent 772.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2018-11-23 14:15:21,321 WARN L180 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2018-11-23 14:15:21,398 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:15:21,399 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:15:21,399 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:15:21,400 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:15:21,400 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:15:21,400 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:15:21,400 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:15:21,400 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:15:21,400 INFO L131 ssoRankerPreferences]: Filename of dumped script: test-0232_1_false-valid-memtrack_true-termination.i_Iteration2_Lasso [2018-11-23 14:15:21,400 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:15:21,401 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:15:21,427 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 14:15:21,432 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 14:15:21,434 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 14:15:21,435 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 14:15:21,436 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 14:15:21,437 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 14:15:21,439 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 14:15:21,440 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 14:15:21,441 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 14:15:21,443 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 14:15:21,444 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 14:15:21,446 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 14:15:21,447 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 14:15:21,449 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 14:15:21,450 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 14:15:21,454 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 14:15:21,455 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 14:15:21,458 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 14:15:21,459 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 14:15:21,461 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 14:15:21,464 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 14:15:22,527 WARN L180 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 119 [2018-11-23 14:15:22,528 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 14:15:22,531 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 14:15:22,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:22,535 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:22,536 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 14:15:22,537 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 14:15:22,538 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 14:15:22,539 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 14:15:22,540 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 14:15:22,541 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 14:15:22,541 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 14:15:22,542 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 14:15:22,759 WARN L180 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2018-11-23 14:15:22,989 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-11-23 14:15:25,013 WARN L180 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 117 DAG size of output: 117 [2018-11-23 14:15:25,076 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 14:15:25,080 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 14:15:25,081 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 14:15:25,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,083 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,083 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,083 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,085 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:15:25,086 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:15:25,094 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,095 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 14:15:25,095 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,095 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,095 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,096 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,097 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:15:25,097 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:15:25,100 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,101 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 14:15:25,101 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,101 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,103 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,103 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,103 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,103 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,104 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,104 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 14:15:25,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,105 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,105 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,105 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,105 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,105 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,105 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,106 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 14:15:25,106 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,106 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,106 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,106 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,106 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,107 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,107 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,107 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,108 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 14:15:25,108 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,108 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,108 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,108 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,108 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,109 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,109 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,109 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,109 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 14:15:25,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,110 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,110 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,110 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,110 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,111 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,111 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,111 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 14:15:25,112 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,112 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,112 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,112 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,112 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,112 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,112 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,113 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,113 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 14:15:25,113 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,114 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,114 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,114 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,114 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,114 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,114 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,115 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,115 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 14:15:25,115 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,116 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,116 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,116 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,116 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,116 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,116 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,117 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,117 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 14:15:25,117 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,118 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,118 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,118 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,118 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,118 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,118 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,119 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,119 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 14:15:25,120 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,120 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,120 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,120 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,120 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,120 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,120 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,121 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,121 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 14:15:25,122 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,122 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,122 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,122 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,122 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,123 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,123 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,123 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,123 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 14:15:25,124 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,124 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 14:15:25,124 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,124 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,124 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,125 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 14:15:25,125 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 14:15:25,125 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 14:15:25,126 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 14:15:25,126 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 14:15:25,126 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 14:15:25,126 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 14:15:25,126 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 14:15:25,128 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 14:15:25,128 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 14:15:25,136 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 14:15:25,147 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-23 14:15:25,148 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 14:15:25,150 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 14:15:25,151 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-23 14:15:25,151 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 14:15:25,152 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(~c~0) = -2*~c~0 + 39 Supporting invariants [] [2018-11-23 14:15:25,168 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2018-11-23 14:15:25,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:25,190 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:15:25,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:25,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:15:25,250 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 14:15:25,252 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-23 14:15:25,252 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6 Second operand 5 states. [2018-11-23 14:15:25,274 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 17 transitions. cyclomatic complexity: 6. Second operand 5 states. Result 23 states and 32 transitions. Complement of second has 6 states. [2018-11-23 14:15:25,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-23 14:15:25,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-23 14:15:25,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-23 14:15:25,276 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 5 letters. [2018-11-23 14:15:25,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:15:25,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 9 letters. Loop has 5 letters. [2018-11-23 14:15:25,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:15:25,277 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 4 letters. Loop has 10 letters. [2018-11-23 14:15:25,277 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 14:15:25,277 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 32 transitions. [2018-11-23 14:15:25,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:25,279 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 18 states and 24 transitions. [2018-11-23 14:15:25,279 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-23 14:15:25,280 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-23 14:15:25,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2018-11-23 14:15:25,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:15:25,280 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2018-11-23 14:15:25,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2018-11-23 14:15:25,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-23 14:15:25,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 14:15:25,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-11-23 14:15:25,281 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-23 14:15:25,281 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-23 14:15:25,281 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 14:15:25,281 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-11-23 14:15:25,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:25,282 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:25,282 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:25,282 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:15:25,282 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 14:15:25,282 INFO L794 eck$LassoCheckResult]: Stem: 174#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 162#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.alloc(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 163#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 176#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.alloc(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 178#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 165#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 170#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 171#L639-4 assume !(main_~length~0 > 0); 175#L652-1 [2018-11-23 14:15:25,282 INFO L796 eck$LassoCheckResult]: Loop: 175#L652-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 175#L652-1 [2018-11-23 14:15:25,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,283 INFO L82 PathProgramCache]: Analyzing trace with hash 149888859, now seen corresponding path program 1 times [2018-11-23 14:15:25,283 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,283 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:25,338 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 14:15:25,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:15:25,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 14:15:25,339 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 14:15:25,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,339 INFO L82 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 1 times [2018-11-23 14:15:25,339 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,339 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:15:25,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:15:25,415 INFO L87 Difference]: Start difference. First operand 17 states and 23 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-23 14:15:25,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:15:25,429 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2018-11-23 14:15:25,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 14:15:25,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 23 transitions. [2018-11-23 14:15:25,431 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:25,431 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 19 states and 23 transitions. [2018-11-23 14:15:25,431 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-23 14:15:25,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-23 14:15:25,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2018-11-23 14:15:25,432 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:15:25,432 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-11-23 14:15:25,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2018-11-23 14:15:25,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-11-23 14:15:25,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 14:15:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2018-11-23 14:15:25,433 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2018-11-23 14:15:25,434 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 21 transitions. [2018-11-23 14:15:25,434 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 14:15:25,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 21 transitions. [2018-11-23 14:15:25,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:25,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:25,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:25,435 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:15:25,435 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 14:15:25,435 INFO L794 eck$LassoCheckResult]: Stem: 217#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 211#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.alloc(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 212#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 219#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.alloc(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 221#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 208#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 213#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 214#L639-4 assume main_~length~0 > 0; 205#L644 assume !(main_~length~0 < 0); 206#L644-2 call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_#t~mem12.base, main_#t~mem12.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem12.base, main_#t~mem12.offset;call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem14.base, main_#t~mem14.offset);havoc main_#t~mem14.base, main_#t~mem14.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post15 := main_~length~0;main_~length~0 := main_#t~post15 - 1;havoc main_#t~post15; 218#L652-1 [2018-11-23 14:15:25,435 INFO L796 eck$LassoCheckResult]: Loop: 218#L652-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 218#L652-1 [2018-11-23 14:15:25,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1985702188, now seen corresponding path program 1 times [2018-11-23 14:15:25,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,468 INFO L82 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 2 times [2018-11-23 14:15:25,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1427225639, now seen corresponding path program 1 times [2018-11-23 14:15:25,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,479 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:15:25,479 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:25,522 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 14:15:25,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:15:25,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:15:25,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:15:25,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:15:25,595 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. cyclomatic complexity: 6 Second operand 5 states. [2018-11-23 14:15:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:15:25,612 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2018-11-23 14:15:25,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:15:25,612 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 37 transitions. [2018-11-23 14:15:25,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:25,614 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 25 states and 31 transitions. [2018-11-23 14:15:25,614 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-23 14:15:25,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-23 14:15:25,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2018-11-23 14:15:25,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:15:25,614 INFO L705 BuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2018-11-23 14:15:25,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2018-11-23 14:15:25,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2018-11-23 14:15:25,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 14:15:25,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-11-23 14:15:25,615 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-23 14:15:25,615 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-11-23 14:15:25,616 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 14:15:25,616 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2018-11-23 14:15:25,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:25,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:25,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:25,617 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:15:25,618 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 14:15:25,618 INFO L794 eck$LassoCheckResult]: Stem: 274#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 268#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.alloc(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 269#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 276#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.alloc(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 265#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 266#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 272#L639-1 assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 273#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 277#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.alloc(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 279#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 278#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 270#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 271#L639-4 assume main_~length~0 > 0; 263#L644 assume !(main_~length~0 < 0); 264#L644-2 call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_#t~mem12.base, main_#t~mem12.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem12.base, main_#t~mem12.offset;call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem14.base, main_#t~mem14.offset);havoc main_#t~mem14.base, main_#t~mem14.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post15 := main_~length~0;main_~length~0 := main_#t~post15 - 1;havoc main_#t~post15; 275#L652-1 [2018-11-23 14:15:25,618 INFO L796 eck$LassoCheckResult]: Loop: 275#L652-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 275#L652-1 [2018-11-23 14:15:25,618 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1723894012, now seen corresponding path program 1 times [2018-11-23 14:15:25,618 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,618 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:15:25,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 14:15:25,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9921bf92-a903-413d-a895-8d2f2764f46e/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 14:15:25,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:15:25,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 14:15:25,806 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 22 [2018-11-23 14:15:25,809 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-11-23 14:15:25,809 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:15:25,847 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 33 [2018-11-23 14:15:25,860 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 26 [2018-11-23 14:15:25,860 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-23 14:15:25,879 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-11-23 14:15:25,879 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-11-23 14:15:25,889 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:15:25,897 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:15:25,911 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-11-23 14:15:25,911 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:39, output treesize:32 [2018-11-23 14:15:25,919 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2018-11-23 14:15:25,921 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-11-23 14:15:25,921 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-23 14:15:25,926 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:15:25,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-23 14:15:25,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-11-23 14:15:25,931 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:15:25,946 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 14:15:25,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-23 14:15:25,946 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 14:15:25,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:25,946 INFO L82 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 3 times [2018-11-23 14:15:25,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:25,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:25,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:25,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:26,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:15:26,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:15:26,051 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 7 states. [2018-11-23 14:15:26,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:15:26,150 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-23 14:15:26,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:15:26,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 18 transitions. [2018-11-23 14:15:26,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:26,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 18 transitions. [2018-11-23 14:15:26,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-23 14:15:26,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-23 14:15:26,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 18 transitions. [2018-11-23 14:15:26,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 14:15:26,153 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-23 14:15:26,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 18 transitions. [2018-11-23 14:15:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-23 14:15:26,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-23 14:15:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-23 14:15:26,154 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-23 14:15:26,154 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-23 14:15:26,154 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-23 14:15:26,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 18 transitions. [2018-11-23 14:15:26,154 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 14:15:26,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 14:15:26,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 14:15:26,155 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 14:15:26,155 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 14:15:26,155 INFO L794 eck$LassoCheckResult]: Stem: 365#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~c~0 := 0; 353#L-1 havoc main_#res;havoc main_#t~post9, main_#t~nondet8, main_#t~mem10.base, main_#t~mem10.offset, main_#t~mem11.base, main_#t~mem11.offset, main_#t~mem12.base, main_#t~mem12.offset, main_#t~mem13.base, main_#t~mem13.offset, main_#t~mem14.base, main_#t~mem14.offset, main_#t~post15, main_~next~0.base, main_~next~0.offset, main_#t~mem16.base, main_#t~mem16.offset, main_#t~mem17.base, main_#t~mem17.offset, main_#t~mem18.base, main_#t~mem18.offset, main_#t~post19, main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, main_~length~0;call main_~#list~0.base, main_~#list~0.offset := #Ultimate.alloc(4);call write~init~$Pointer$(0, 0, main_~#list~0.base, main_~#list~0.offset, 4);main_~length~0 := 0; 354#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 367#L630 assume !(append_#t~mem3.base != 0 || append_#t~mem3.offset != 0);call append_#t~malloc6.base, append_#t~malloc6.offset := #Ultimate.alloc(8);append_#t~ite7.base, append_#t~ite7.offset := append_#t~malloc6.base, append_#t~malloc6.offset; 369#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 358#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 363#L639-1 assume !!(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 364#L639-3 append_#in~plist.base, append_#in~plist.offset := main_~#list~0.base, main_~#list~0.offset;havoc append_#t~post0, append_#t~malloc1.base, append_#t~malloc1.offset, append_#t~mem2.base, append_#t~mem2.offset, append_#t~mem3.base, append_#t~mem3.offset, append_#t~ite7.base, append_#t~ite7.offset, append_#t~mem4.base, append_#t~mem4.offset, append_#t~mem5.base, append_#t~mem5.offset, append_#t~malloc6.base, append_#t~malloc6.offset, append_~plist.base, append_~plist.offset, append_~item~0.base, append_~item~0.offset;append_~plist.base, append_~plist.offset := append_#in~plist.base, append_#in~plist.offset;append_#t~post0 := ~c~0;~c~0 := 1 + append_#t~post0;havoc append_#t~post0;call append_#t~malloc1.base, append_#t~malloc1.offset := #Ultimate.alloc(8);append_~item~0.base, append_~item~0.offset := append_#t~malloc1.base, append_#t~malloc1.offset;call append_#t~mem2.base, append_#t~mem2.offset := read~$Pointer$(append_~plist.base, append_~plist.offset, 4);call write~$Pointer$(append_#t~mem2.base, append_#t~mem2.offset, append_~item~0.base, append_~item~0.offset, 4);havoc append_#t~mem2.base, append_#t~mem2.offset;call append_#t~mem3.base, append_#t~mem3.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4); 368#L630 assume append_#t~mem3.base != 0 || append_#t~mem3.offset != 0;call append_#t~mem4.base, append_#t~mem4.offset := read~$Pointer$(append_~item~0.base, append_~item~0.offset, 4);call append_#t~mem5.base, append_#t~mem5.offset := read~$Pointer$(append_#t~mem4.base, 4 + append_#t~mem4.offset, 4);append_#t~ite7.base, append_#t~ite7.offset := append_#t~mem5.base, append_#t~mem5.offset; 355#L630-2 call write~$Pointer$(append_#t~ite7.base, append_#t~ite7.offset, append_~item~0.base, 4 + append_~item~0.offset, 4);havoc append_#t~mem5.base, append_#t~mem5.offset;havoc append_#t~mem3.base, append_#t~mem3.offset;havoc append_#t~ite7.base, append_#t~ite7.offset;havoc append_#t~mem4.base, append_#t~mem4.offset;call write~$Pointer$(append_~item~0.base, append_~item~0.offset, append_~plist.base, append_~plist.offset, 4); 356#L625 main_#t~post9 := main_~length~0;main_~length~0 := 1 + main_#t~post9;havoc main_#t~post9; 361#L639-1 assume !(0 != main_#t~nondet8 && ~c~0 < 20);havoc main_#t~nondet8; 362#L639-4 assume main_~length~0 > 0; 359#L644 assume !(main_~length~0 < 0); 360#L644-2 call main_#t~mem12.base, main_#t~mem12.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem13.base, main_#t~mem13.offset := read~$Pointer$(main_#t~mem12.base, main_#t~mem12.offset, 4);main_~next~0.base, main_~next~0.offset := main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem13.base, main_#t~mem13.offset;havoc main_#t~mem12.base, main_#t~mem12.offset;call main_#t~mem14.base, main_#t~mem14.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem14.base, main_#t~mem14.offset);havoc main_#t~mem14.base, main_#t~mem14.offset;call write~$Pointer$(main_~next~0.base, main_~next~0.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post15 := main_~length~0;main_~length~0 := main_#t~post15 - 1;havoc main_#t~post15; 366#L652-1 [2018-11-23 14:15:26,155 INFO L796 eck$LassoCheckResult]: Loop: 366#L652-1 assume !!(main_~length~0 > 0);call main_#t~mem16.base, main_#t~mem16.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call main_#t~mem17.base, main_#t~mem17.offset := read~$Pointer$(main_#t~mem16.base, main_#t~mem16.offset, 4);main_~next~1.base, main_~next~1.offset := main_#t~mem17.base, main_#t~mem17.offset;havoc main_#t~mem16.base, main_#t~mem16.offset;havoc main_#t~mem17.base, main_#t~mem17.offset;call main_#t~mem18.base, main_#t~mem18.offset := read~$Pointer$(main_~#list~0.base, main_~#list~0.offset, 4);call ULTIMATE.dealloc(main_#t~mem18.base, main_#t~mem18.offset);havoc main_#t~mem18.base, main_#t~mem18.offset;call write~$Pointer$(main_~next~1.base, main_~next~1.offset, main_~#list~0.base, main_~#list~0.offset, 4);main_#t~post19 := main_~length~0;main_~length~0 := main_#t~post19 - 1;havoc main_#t~post19; 366#L652-1 [2018-11-23 14:15:26,155 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:26,156 INFO L82 PathProgramCache]: Analyzing trace with hash -51113350, now seen corresponding path program 1 times [2018-11-23 14:15:26,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:26,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:26,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:26,156 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:15:26,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:26,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:26,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:26,202 INFO L82 PathProgramCache]: Analyzing trace with hash 76, now seen corresponding path program 4 times [2018-11-23 14:15:26,202 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:26,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:26,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:26,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:15:26,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:26,207 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:15:26,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1584513805, now seen corresponding path program 1 times [2018-11-23 14:15:26,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:15:26,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:15:26,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:26,208 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 14:15:26,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:15:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 14:15:30,024 WARN L180 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 310 DAG size of output: 241 [2018-11-23 14:15:30,808 WARN L180 SmtUtils]: Spent 771.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2018-11-23 14:15:30,810 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 14:15:30,810 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 14:15:30,810 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 14:15:30,810 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 14:15:30,811 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 14:15:30,811 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 14:15:30,811 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 14:15:30,811 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 14:15:30,811 INFO L131 ssoRankerPreferences]: Filename of dumped script: test-0232_1_false-valid-memtrack_true-termination.i_Iteration6_Lasso [2018-11-23 14:15:30,811 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 14:15:30,811 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 14:15:30,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:30,818 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:30,820 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 14:15:30,821 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 14:15:30,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:30,823 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 14:15:30,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:30,825 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 14:15:30,827 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 14:15:30,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:30,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 14:15:30,831 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 14:15:31,074 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.AssertionError: MapEliminator tries to combine Int and (Array Int Int) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.replaceSelectStoreTerm(MapEliminator.java:592) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.replaceStoreTerms(MapEliminator.java:542) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.getRewrittenTransFormula(MapEliminator.java:330) at de.uni_freiburg.informatik.ultimate.lassoranker.preprocessors.MapEliminationLassoPreprocessor.process(MapEliminationLassoPreprocessor.java:109) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.applyPreprocessor(LassoBuilder.java:154) at de.uni_freiburg.informatik.ultimate.lassoranker.variables.LassoBuilder.preprocess(LassoBuilder.java:262) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.preprocess(LassoAnalysis.java:286) at de.uni_freiburg.informatik.ultimate.lassoranker.LassoAnalysis.(LassoAnalysis.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:612) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.access$16(LassoCheck.java:539) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLassoTermination(LassoCheck.java:958) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:865) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:251) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:476) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:384) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 14:15:31,076 INFO L168 Benchmark]: Toolchain (without parser) took 13188.30 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 355.5 MB). Free memory was 955.4 MB in the beginning and 1.2 GB in the end (delta: -216.0 MB). Peak memory consumption was 478.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:15:31,077 INFO L168 Benchmark]: CDTParser took 0.18 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. [2018-11-23 14:15:31,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2018-11-23 14:15:31,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.64 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:15:31,078 INFO L168 Benchmark]: Boogie Preprocessor took 23.87 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:15:31,078 INFO L168 Benchmark]: RCFGBuilder took 323.14 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:15:31,079 INFO L168 Benchmark]: BuchiAutomizer took 12491.80 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -63.2 MB). Peak memory consumption was 476.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:15:31,081 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 312.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -187.1 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.64 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.87 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 323.14 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: 27.7 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 12491.80 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 200.8 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -63.2 MB). Peak memory consumption was 476.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: AssertionError: MapEliminator tries to combine Int and (Array Int Int) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: AssertionError: MapEliminator tries to combine Int and (Array Int Int): de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.mapelimination.MapEliminator.indexEqualityInequalityImpliesValueEquality(MapEliminator.java:850) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...