./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/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 6450f1ab8e8876cd25bd9465d040f8eaf1b1860b .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:12:53,397 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:12:53,399 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:12:53,407 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:12:53,407 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:12:53,408 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:12:53,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:12:53,410 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:12:53,411 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:12:53,412 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:12:53,412 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:12:53,413 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:12:53,413 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:12:53,414 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:12:53,415 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:12:53,415 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:12:53,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:12:53,417 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:12:53,418 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:12:53,419 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:12:53,420 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:12:53,421 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:12:53,423 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:12:53,423 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:12:53,423 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:12:53,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:12:53,424 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:12:53,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:12:53,425 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:12:53,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:12:53,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:12:53,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:12:53,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:12:53,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:12:53,428 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:12:53,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:12:53,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 13:12:53,439 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:12:53,439 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:12:53,440 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:12:53,440 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:12:53,440 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:12:53,441 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:12:53,441 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:12:53,441 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:12:53,441 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:12:53,441 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:12:53,441 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:12:53,441 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:12:53,442 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:12:53,443 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:12:53,443 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:12:53,443 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:12:53,443 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:12:53,443 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:12:53,443 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:12:53,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:12:53,444 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:12:53,444 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:12:53,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:12:53,444 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:12:53,444 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:12:53,445 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:12:53,445 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_b1d07769-25b9-4a01-9bc6-15aa369667a2/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 -> 6450f1ab8e8876cd25bd9465d040f8eaf1b1860b [2018-11-28 13:12:53,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:12:53,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:12:53,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:12:53,482 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:12:53,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:12:53,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/../../sv-benchmarks/c/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-11-28 13:12:53,525 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/data/e929feace/c248537aa7474a059e03dc7f32e5fae9/FLAG52edbffd9 [2018-11-28 13:12:53,926 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:12:53,927 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/sv-benchmarks/c/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-11-28 13:12:53,931 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/data/e929feace/c248537aa7474a059e03dc7f32e5fae9/FLAG52edbffd9 [2018-11-28 13:12:53,940 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/data/e929feace/c248537aa7474a059e03dc7f32e5fae9 [2018-11-28 13:12:53,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:12:53,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:12:53,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:12:53,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:12:53,945 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:12:53,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:12:53" (1/1) ... [2018-11-28 13:12:53,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41c9e3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:53, skipping insertion in model container [2018-11-28 13:12:53,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:12:53" (1/1) ... [2018-11-28 13:12:53,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:12:53,964 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:12:54,080 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:12:54,087 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:12:54,105 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:12:54,115 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:12:54,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54 WrapperNode [2018-11-28 13:12:54,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:12:54,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:12:54,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:12:54,116 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:12:54,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:12:54,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:12:54,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:12:54,184 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:12:54,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... [2018-11-28 13:12:54,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:12:54,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:12:54,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:12:54,201 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:12:54,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/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 [2018-11-28 13:12:54,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 13:12:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:12:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 13:12:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2018-11-28 13:12:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:12:54,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:12:54,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 13:12:54,512 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:12:54,512 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-11-28 13:12:54,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:12:54 BoogieIcfgContainer [2018-11-28 13:12:54,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:12:54,513 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:12:54,513 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:12:54,516 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:12:54,517 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:12:54,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:12:53" (1/3) ... [2018-11-28 13:12:54,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4658b691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:12:54, skipping insertion in model container [2018-11-28 13:12:54,518 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:12:54,518 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:12:54" (2/3) ... [2018-11-28 13:12:54,518 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4658b691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:12:54, skipping insertion in model container [2018-11-28 13:12:54,519 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:12:54,519 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:12:54" (3/3) ... [2018-11-28 13:12:54,520 INFO L375 chiAutomizerObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-11-28 13:12:54,560 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:12:54,561 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:12:54,561 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:12:54,561 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:12:54,561 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:12:54,561 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:12:54,561 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:12:54,562 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:12:54,562 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:12:54,575 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states. [2018-11-28 13:12:54,594 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2018-11-28 13:12:54,594 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:54,594 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:54,600 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:12:54,600 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:12:54,600 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:12:54,600 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 37 states. [2018-11-28 13:12:54,602 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2018-11-28 13:12:54,602 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:54,602 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:54,602 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:12:54,603 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 13:12:54,609 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 11#L-1true havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 31#L79-3true [2018-11-28 13:12:54,609 INFO L796 eck$LassoCheckResult]: Loop: 31#L79-3true assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 36#L79-2true main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 31#L79-3true [2018-11-28 13:12:54,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:54,615 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-28 13:12:54,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:54,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:54,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:54,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:54,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:54,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:54,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:54,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:54,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2018-11-28 13:12:54,695 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:54,695 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:54,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:54,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:54,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:54,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:54,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:54,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:54,711 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2018-11-28 13:12:54,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:54,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:54,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:54,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:54,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:54,838 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:12:54,839 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:12:54,839 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:12:54,839 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:12:54,839 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:12:54,840 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:12:54,840 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:12:54,840 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:12:54,840 INFO L131 ssoRankerPreferences]: Filename of dumped script: veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_Iteration1_Lasso [2018-11-28 13:12:54,840 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:12:54,840 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:12:54,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:12:54,905 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:12:54,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:12:54,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:12:54,912 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:12:54,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:12:55,006 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:12:55,010 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:12:55,012 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 [2018-11-28 13:12:55,013 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:12:55,013 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:12:55,013 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:12:55,014 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:12:55,014 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:12:55,015 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:12:55,016 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:12:55,019 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:12:55,019 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 [2018-11-28 13:12:55,020 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:12:55,020 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:12:55,020 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:12:55,020 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:12:55,024 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:12:55,024 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:12:55,055 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:12:55,077 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-11-28 13:12:55,077 INFO L444 ModelExtractionUtils]: 7 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 13:12:55,080 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:12:55,081 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 13:12:55,081 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:12:55,082 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1, ULTIMATE.start_main_~i~1) = 15*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 - 2*ULTIMATE.start_main_~i~1 Supporting invariants [] [2018-11-28 13:12:55,089 INFO L297 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 13:12:55,093 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-11-28 13:12:55,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,124 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:55,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,159 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:12:55,160 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 37 states. Second operand 3 states. [2018-11-28 13:12:55,241 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 37 states.. Second operand 3 states. Result 102 states and 153 transitions. Complement of second has 8 states. [2018-11-28 13:12:55,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 13:12:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:12:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 101 transitions. [2018-11-28 13:12:55,245 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 101 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 13:12:55,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:12:55,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 101 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 13:12:55,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:12:55,246 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 101 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 13:12:55,246 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:12:55,247 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 153 transitions. [2018-11-28 13:12:55,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,255 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 32 states and 43 transitions. [2018-11-28 13:12:55,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 29 [2018-11-28 13:12:55,257 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:55,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 43 transitions. [2018-11-28 13:12:55,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:55,258 INFO L705 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-28 13:12:55,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states and 43 transitions. [2018-11-28 13:12:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-28 13:12:55,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 13:12:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2018-11-28 13:12:55,279 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-28 13:12:55,279 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 43 transitions. [2018-11-28 13:12:55,279 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:12:55,280 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 43 transitions. [2018-11-28 13:12:55,280 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:55,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:55,281 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:55,281 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:55,281 INFO L794 eck$LassoCheckResult]: Stem: 208#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 193#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 194#L79-3 assume !(main_~i~1 < 8); 209#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 189#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 190#L52-4 [2018-11-28 13:12:55,281 INFO L796 eck$LassoCheckResult]: Loop: 190#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 203#L55 assume !parse_expression_list_#t~switch4; 198#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 199#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 205#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 190#L52-4 [2018-11-28 13:12:55,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,281 INFO L82 PathProgramCache]: Analyzing trace with hash 28696938, now seen corresponding path program 1 times [2018-11-28 13:12:55,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:55,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:12:55,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:12:55,313 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:55,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,313 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 1 times [2018-11-28 13:12:55,313 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:55,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:12:55,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:12:55,388 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-28 13:12:55,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:55,403 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2018-11-28 13:12:55,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:12:55,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 43 transitions. [2018-11-28 13:12:55,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,406 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 33 states and 43 transitions. [2018-11-28 13:12:55,406 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:55,406 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:55,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 43 transitions. [2018-11-28 13:12:55,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:55,407 INFO L705 BuchiCegarLoop]: Abstraction has 33 states and 43 transitions. [2018-11-28 13:12:55,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states and 43 transitions. [2018-11-28 13:12:55,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2018-11-28 13:12:55,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-28 13:12:55,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2018-11-28 13:12:55,409 INFO L728 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2018-11-28 13:12:55,409 INFO L608 BuchiCegarLoop]: Abstraction has 32 states and 42 transitions. [2018-11-28 13:12:55,409 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:12:55,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 32 states and 42 transitions. [2018-11-28 13:12:55,410 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,410 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:55,410 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:55,410 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:12:55,410 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:55,411 INFO L794 eck$LassoCheckResult]: Stem: 279#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 264#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 265#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 281#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 282#L79-3 assume !(main_~i~1 < 8); 280#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 258#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 259#L52-4 [2018-11-28 13:12:55,411 INFO L796 eck$LassoCheckResult]: Loop: 259#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 274#L55 assume !parse_expression_list_#t~switch4; 269#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 270#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 275#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 259#L52-4 [2018-11-28 13:12:55,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1809669544, now seen corresponding path program 1 times [2018-11-28 13:12:55,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:55,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,431 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:55,431 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/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 [2018-11-28 13:12:55,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,467 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:55,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2018-11-28 13:12:55,467 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:55,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,468 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 2 times [2018-11-28 13:12:55,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,468 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:55,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 13:12:55,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-28 13:12:55,511 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. cyclomatic complexity: 12 Second operand 5 states. [2018-11-28 13:12:55,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:55,522 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2018-11-28 13:12:55,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 13:12:55,523 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2018-11-28 13:12:55,523 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,524 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 35 states and 45 transitions. [2018-11-28 13:12:55,524 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:55,524 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:55,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 45 transitions. [2018-11-28 13:12:55,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:55,524 INFO L705 BuchiCegarLoop]: Abstraction has 35 states and 45 transitions. [2018-11-28 13:12:55,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 45 transitions. [2018-11-28 13:12:55,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-11-28 13:12:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-28 13:12:55,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2018-11-28 13:12:55,527 INFO L728 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2018-11-28 13:12:55,527 INFO L608 BuchiCegarLoop]: Abstraction has 34 states and 44 transitions. [2018-11-28 13:12:55,527 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 13:12:55,527 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 44 transitions. [2018-11-28 13:12:55,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:55,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:55,528 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-28 13:12:55,528 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:55,528 INFO L794 eck$LassoCheckResult]: Stem: 372#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 357#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 358#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 374#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 375#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 376#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 380#L79-3 assume !(main_~i~1 < 8); 373#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 351#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 352#L52-4 [2018-11-28 13:12:55,529 INFO L796 eck$LassoCheckResult]: Loop: 352#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 367#L55 assume !parse_expression_list_#t~switch4; 362#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 363#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 368#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 352#L52-4 [2018-11-28 13:12:55,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,529 INFO L82 PathProgramCache]: Analyzing trace with hash -367607194, now seen corresponding path program 2 times [2018-11-28 13:12:55,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,530 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:55,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,563 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:55,563 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:55,570 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 13:12:55,581 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 13:12:55,581 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:12:55,583 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:55,593 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,607 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:55,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-11-28 13:12:55,607 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:55,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,608 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 3 times [2018-11-28 13:12:55,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,609 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:55,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:12:55,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:12:55,711 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. cyclomatic complexity: 12 Second operand 6 states. [2018-11-28 13:12:55,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:55,727 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2018-11-28 13:12:55,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:12:55,728 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 47 transitions. [2018-11-28 13:12:55,729 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 37 states and 47 transitions. [2018-11-28 13:12:55,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:55,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:55,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 37 states and 47 transitions. [2018-11-28 13:12:55,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:55,730 INFO L705 BuchiCegarLoop]: Abstraction has 37 states and 47 transitions. [2018-11-28 13:12:55,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states and 47 transitions. [2018-11-28 13:12:55,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2018-11-28 13:12:55,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-11-28 13:12:55,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2018-11-28 13:12:55,733 INFO L728 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2018-11-28 13:12:55,733 INFO L608 BuchiCegarLoop]: Abstraction has 36 states and 46 transitions. [2018-11-28 13:12:55,733 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 13:12:55,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 36 states and 46 transitions. [2018-11-28 13:12:55,734 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:55,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:55,734 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 1, 1, 1, 1, 1] [2018-11-28 13:12:55,734 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:55,735 INFO L794 eck$LassoCheckResult]: Stem: 476#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 461#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 462#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 478#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 484#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 486#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 479#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 480#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 485#L79-3 assume !(main_~i~1 < 8); 477#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 455#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 456#L52-4 [2018-11-28 13:12:55,735 INFO L796 eck$LassoCheckResult]: Loop: 456#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 471#L55 assume !parse_expression_list_#t~switch4; 466#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 467#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 472#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 456#L52-4 [2018-11-28 13:12:55,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1081479260, now seen corresponding path program 3 times [2018-11-28 13:12:55,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,736 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:55,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:55,770 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:55,780 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-11-28 13:12:55,790 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2018-11-28 13:12:55,790 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:12:55,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,811 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:55,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2018-11-28 13:12:55,812 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:55,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,812 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 4 times [2018-11-28 13:12:55,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,813 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:55,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:12:55,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:12:55,875 INFO L87 Difference]: Start difference. First operand 36 states and 46 transitions. cyclomatic complexity: 12 Second operand 7 states. [2018-11-28 13:12:55,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:55,887 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2018-11-28 13:12:55,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 13:12:55,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 49 transitions. [2018-11-28 13:12:55,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 39 states and 49 transitions. [2018-11-28 13:12:55,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:55,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:55,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 39 states and 49 transitions. [2018-11-28 13:12:55,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:55,891 INFO L705 BuchiCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-11-28 13:12:55,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states and 49 transitions. [2018-11-28 13:12:55,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2018-11-28 13:12:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 13:12:55,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-11-28 13:12:55,892 INFO L728 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-11-28 13:12:55,892 INFO L608 BuchiCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-11-28 13:12:55,893 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 13:12:55,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 48 transitions. [2018-11-28 13:12:55,893 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:55,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:55,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:55,894 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [4, 4, 1, 1, 1, 1, 1] [2018-11-28 13:12:55,894 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:55,894 INFO L794 eck$LassoCheckResult]: Stem: 591#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 576#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 577#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 593#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 594#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 595#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 599#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 603#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 602#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 601#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 600#L79-3 assume !(main_~i~1 < 8); 592#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 570#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 571#L52-4 [2018-11-28 13:12:55,895 INFO L796 eck$LassoCheckResult]: Loop: 571#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 586#L55 assume !parse_expression_list_#t~switch4; 581#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 582#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 587#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 571#L52-4 [2018-11-28 13:12:55,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,895 INFO L82 PathProgramCache]: Analyzing trace with hash 82232674, now seen corresponding path program 4 times [2018-11-28 13:12:55,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,896 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:55,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,937 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:55,937 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:55,948 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-11-28 13:12:55,961 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-11-28 13:12:55,961 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:12:55,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:55,992 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:55,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2018-11-28 13:12:55,992 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:55,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:55,992 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 5 times [2018-11-28 13:12:55,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:55,993 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:55,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,993 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:55,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 13:12:56,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2018-11-28 13:12:56,030 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. cyclomatic complexity: 12 Second operand 8 states. [2018-11-28 13:12:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:56,044 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2018-11-28 13:12:56,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:12:56,044 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 51 transitions. [2018-11-28 13:12:56,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 41 states and 51 transitions. [2018-11-28 13:12:56,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:56,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:56,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 51 transitions. [2018-11-28 13:12:56,046 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:56,046 INFO L705 BuchiCegarLoop]: Abstraction has 41 states and 51 transitions. [2018-11-28 13:12:56,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 51 transitions. [2018-11-28 13:12:56,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2018-11-28 13:12:56,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-28 13:12:56,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2018-11-28 13:12:56,049 INFO L728 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2018-11-28 13:12:56,049 INFO L608 BuchiCegarLoop]: Abstraction has 40 states and 50 transitions. [2018-11-28 13:12:56,049 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 13:12:56,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 40 states and 50 transitions. [2018-11-28 13:12:56,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:56,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:56,050 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [5, 5, 1, 1, 1, 1, 1] [2018-11-28 13:12:56,050 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:56,051 INFO L794 eck$LassoCheckResult]: Stem: 717#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 702#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 703#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 719#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 720#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 721#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 725#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 731#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 730#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 729#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 728#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 727#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 726#L79-3 assume !(main_~i~1 < 8); 718#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 696#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 697#L52-4 [2018-11-28 13:12:56,051 INFO L796 eck$LassoCheckResult]: Loop: 697#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 712#L55 assume !parse_expression_list_#t~switch4; 707#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 708#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 713#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 697#L52-4 [2018-11-28 13:12:56,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1717904288, now seen corresponding path program 5 times [2018-11-28 13:12:56,051 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,052 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:56,100 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:56,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:56,100 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:56,106 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 [2018-11-28 13:12:56,120 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2018-11-28 13:12:56,120 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:12:56,121 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:56,127 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:56,142 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:56,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2018-11-28 13:12:56,142 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:56,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,143 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 6 times [2018-11-28 13:12:56,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,143 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:12:56,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:12:56,203 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. cyclomatic complexity: 12 Second operand 9 states. [2018-11-28 13:12:56,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:56,220 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2018-11-28 13:12:56,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 13:12:56,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 53 transitions. [2018-11-28 13:12:56,221 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 43 states and 53 transitions. [2018-11-28 13:12:56,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:56,222 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:56,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 43 states and 53 transitions. [2018-11-28 13:12:56,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:56,222 INFO L705 BuchiCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-11-28 13:12:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states and 53 transitions. [2018-11-28 13:12:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2018-11-28 13:12:56,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 13:12:56,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-11-28 13:12:56,224 INFO L728 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-11-28 13:12:56,224 INFO L608 BuchiCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-11-28 13:12:56,224 INFO L442 BuchiCegarLoop]: ======== Iteration 8============ [2018-11-28 13:12:56,224 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 42 states and 52 transitions. [2018-11-28 13:12:56,224 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:56,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:56,225 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [6, 6, 1, 1, 1, 1, 1] [2018-11-28 13:12:56,225 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:56,225 INFO L794 eck$LassoCheckResult]: Stem: 854#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 839#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 840#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 856#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 857#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 858#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 862#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 870#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 869#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 868#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 867#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 866#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 865#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 864#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 863#L79-3 assume !(main_~i~1 < 8); 855#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 833#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 834#L52-4 [2018-11-28 13:12:56,225 INFO L796 eck$LassoCheckResult]: Loop: 834#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 849#L55 assume !parse_expression_list_#t~switch4; 844#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 845#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 850#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 834#L52-4 [2018-11-28 13:12:56,226 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1640295006, now seen corresponding path program 6 times [2018-11-28 13:12:56,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,227 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:56,273 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:56,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:56,274 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:56,280 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2018-11-28 13:12:56,303 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2018-11-28 13:12:56,303 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 13:12:56,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:56,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:56,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2018-11-28 13:12:56,354 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:56,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,354 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 7 times [2018-11-28 13:12:56,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,355 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 13:12:56,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2018-11-28 13:12:56,391 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. cyclomatic complexity: 12 Second operand 10 states. [2018-11-28 13:12:56,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:56,414 INFO L93 Difference]: Finished difference Result 45 states and 55 transitions. [2018-11-28 13:12:56,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:12:56,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 55 transitions. [2018-11-28 13:12:56,416 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 45 states and 55 transitions. [2018-11-28 13:12:56,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:56,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:56,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 45 states and 55 transitions. [2018-11-28 13:12:56,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:56,417 INFO L705 BuchiCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-11-28 13:12:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states and 55 transitions. [2018-11-28 13:12:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 44. [2018-11-28 13:12:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-28 13:12:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-11-28 13:12:56,419 INFO L728 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-28 13:12:56,419 INFO L608 BuchiCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-28 13:12:56,419 INFO L442 BuchiCegarLoop]: ======== Iteration 9============ [2018-11-28 13:12:56,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 44 states and 54 transitions. [2018-11-28 13:12:56,419 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:56,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:56,420 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [7, 7, 1, 1, 1, 1, 1] [2018-11-28 13:12:56,420 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:56,420 INFO L794 eck$LassoCheckResult]: Stem: 1002#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 987#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 988#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1004#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1005#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1006#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1010#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1020#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1019#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1018#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1017#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1016#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1015#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1014#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1013#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1012#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1011#L79-3 assume !(main_~i~1 < 8); 1003#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 983#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 984#L52-4 [2018-11-28 13:12:56,420 INFO L796 eck$LassoCheckResult]: Loop: 984#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 997#L55 assume !parse_expression_list_#t~switch4; 992#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 993#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 999#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 984#L52-4 [2018-11-28 13:12:56,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,420 INFO L82 PathProgramCache]: Analyzing trace with hash 72219036, now seen corresponding path program 7 times [2018-11-28 13:12:56,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,429 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:56,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:56,507 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:56,507 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:12:56,508 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:12:56,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:56,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:12:56,539 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:12:56,547 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:12:56,562 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:12:56,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2018-11-28 13:12:56,562 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:12:56,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,563 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 8 times [2018-11-28 13:12:56,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:12:56,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:12:56,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:12:56,603 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. cyclomatic complexity: 12 Second operand 11 states. [2018-11-28 13:12:56,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:12:56,620 INFO L93 Difference]: Finished difference Result 46 states and 56 transitions. [2018-11-28 13:12:56,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:12:56,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 56 transitions. [2018-11-28 13:12:56,621 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,621 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 46 states and 56 transitions. [2018-11-28 13:12:56,621 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:12:56,621 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:12:56,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 56 transitions. [2018-11-28 13:12:56,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:12:56,622 INFO L705 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-28 13:12:56,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states and 56 transitions. [2018-11-28 13:12:56,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-11-28 13:12:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-11-28 13:12:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-11-28 13:12:56,623 INFO L728 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-28 13:12:56,623 INFO L608 BuchiCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-11-28 13:12:56,623 INFO L442 BuchiCegarLoop]: ======== Iteration 10============ [2018-11-28 13:12:56,623 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 46 states and 56 transitions. [2018-11-28 13:12:56,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 25 [2018-11-28 13:12:56,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:12:56,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:12:56,624 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1, 1] [2018-11-28 13:12:56,624 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:12:56,624 INFO L794 eck$LassoCheckResult]: Stem: 1160#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1145#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 1146#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1162#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1163#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1164#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1168#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1180#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1179#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1178#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1177#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1176#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1175#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1174#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1173#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1172#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1171#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1170#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1169#L79-3 assume !(main_~i~1 < 8); 1161#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 1139#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1140#L52-4 [2018-11-28 13:12:56,624 INFO L796 eck$LassoCheckResult]: Loop: 1140#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 1155#L55 assume !parse_expression_list_#t~switch4; 1150#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 1151#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1156#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 1140#L52-4 [2018-11-28 13:12:56,624 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,624 INFO L82 PathProgramCache]: Analyzing trace with hash 684732762, now seen corresponding path program 8 times [2018-11-28 13:12:56,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,625 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,646 INFO L82 PathProgramCache]: Analyzing trace with hash 55413311, now seen corresponding path program 9 times [2018-11-28 13:12:56,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,647 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,652 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:12:56,652 INFO L82 PathProgramCache]: Analyzing trace with hash 299059334, now seen corresponding path program 1 times [2018-11-28 13:12:56,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:12:56,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:12:56,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,653 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:12:56,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:12:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:12:56,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:00,146 WARN L180 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 190 DAG size of output: 146 [2018-11-28 13:13:00,293 WARN L180 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2018-11-28 13:13:00,294 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:13:00,294 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:13:00,294 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:13:00,294 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:13:00,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:13:00,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:13:00,295 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:13:00,295 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:13:00,295 INFO L131 ssoRankerPreferences]: Filename of dumped script: veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_Iteration10_Lasso [2018-11-28 13:13:00,295 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:13:00,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:13:00,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,301 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,306 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,308 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,309 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,312 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,317 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,319 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,321 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,326 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,329 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,423 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:00,577 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:13:00,578 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:13:00,578 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 [2018-11-28 13:13:00,578 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,579 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,579 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,579 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,579 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,579 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,579 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,580 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,580 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 [2018-11-28 13:13:00,580 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,581 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,581 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,581 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,581 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,581 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,581 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,582 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,582 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 [2018-11-28 13:13:00,582 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,582 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,582 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,583 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,583 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,583 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,583 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,583 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,584 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 [2018-11-28 13:13:00,584 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,584 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,584 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,584 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,584 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,584 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,584 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,585 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,585 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 [2018-11-28 13:13:00,585 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,585 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,585 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,585 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,585 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,586 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,586 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,586 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,586 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 [2018-11-28 13:13:00,587 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,587 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,587 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,587 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,588 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,588 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,589 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,590 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 [2018-11-28 13:13:00,590 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,590 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,590 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,590 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,590 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,591 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,591 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,591 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,591 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 [2018-11-28 13:13:00,592 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,592 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,592 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,592 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,593 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,593 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,594 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,594 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 [2018-11-28 13:13:00,595 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,595 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,595 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,595 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,595 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,595 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,595 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,596 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,596 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 [2018-11-28 13:13:00,596 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,596 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,596 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,597 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,597 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,597 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,597 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,597 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,598 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 [2018-11-28 13:13:00,598 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,598 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,598 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,598 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,598 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,599 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,599 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,599 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,600 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 [2018-11-28 13:13:00,600 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,601 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,601 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,601 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,602 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,602 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,603 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,603 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 [2018-11-28 13:13:00,603 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,604 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,604 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,604 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,604 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,604 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,604 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,605 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,605 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 [2018-11-28 13:13:00,605 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,605 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,605 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,605 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,606 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,606 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,606 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,606 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,607 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 [2018-11-28 13:13:00,607 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,607 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,607 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,607 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,608 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,608 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,610 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,610 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 [2018-11-28 13:13:00,610 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,610 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,611 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,611 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,611 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,611 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,611 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,611 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,612 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 [2018-11-28 13:13:00,612 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,612 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,612 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,612 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,612 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,613 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,613 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,613 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,613 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 [2018-11-28 13:13:00,614 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,614 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,614 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,614 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,614 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,614 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,614 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,615 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,615 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 [2018-11-28 13:13:00,615 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,616 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,616 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,616 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,616 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,616 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,616 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,617 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,617 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 [2018-11-28 13:13:00,617 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,617 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,617 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,618 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,618 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,618 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,618 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,619 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,619 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 [2018-11-28 13:13:00,619 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,619 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,619 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,619 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,620 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,620 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,620 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,620 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,621 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 [2018-11-28 13:13:00,621 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,621 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,621 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,621 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,622 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,622 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,622 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,622 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,623 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 [2018-11-28 13:13:00,623 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,623 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,623 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,623 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,623 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,624 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,624 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,624 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,624 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 [2018-11-28 13:13:00,625 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,625 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,625 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,625 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,625 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,625 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,625 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,626 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,626 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 [2018-11-28 13:13:00,626 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,626 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,627 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,627 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,630 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,630 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,631 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,632 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 [2018-11-28 13:13:00,632 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,632 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,632 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,632 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,632 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,633 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,633 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,633 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,634 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 [2018-11-28 13:13:00,635 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,635 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,635 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,635 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,635 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,635 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,636 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,636 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,636 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 [2018-11-28 13:13:00,637 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,637 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:00,637 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,637 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,637 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,637 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:00,637 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:00,638 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,638 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 [2018-11-28 13:13:00,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,638 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,639 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,639 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,639 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,641 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,641 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 [2018-11-28 13:13:00,645 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,645 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,645 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,645 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,646 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,646 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,647 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,648 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 [2018-11-28 13:13:00,648 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,648 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,648 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,648 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,649 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,649 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,656 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,656 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 [2018-11-28 13:13:00,657 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,657 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-28 13:13:00,657 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,657 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,659 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-28 13:13:00,659 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,661 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:00,661 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 13:13:00,661 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:00,662 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:00,662 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:00,662 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:00,663 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:00,663 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:00,680 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:13:00,693 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:13:00,697 INFO L444 ModelExtractionUtils]: 17 out of 22 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:13:00,698 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:13:00,698 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 13:13:00,699 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:13:00,699 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_parse_expression_list_~str.base)_1, ULTIMATE.start_parse_expression_list_~str.offset, ULTIMATE.start_parse_expression_list_~i~0) = 1*v_rep(select #length ULTIMATE.start_parse_expression_list_~str.base)_1 - 1*ULTIMATE.start_parse_expression_list_~str.offset - 1*ULTIMATE.start_parse_expression_list_~i~0 Supporting invariants [] [2018-11-28 13:13:00,728 INFO L297 tatePredicateManager]: 6 out of 6 supporting invariants were superfluous and have been removed [2018-11-28 13:13:00,730 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-11-28 13:13:00,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:00,754 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:00,762 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:00,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:13:00,780 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:13:00,780 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 46 states and 56 transitions. cyclomatic complexity: 12 Second operand 3 states. [2018-11-28 13:13:00,804 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 46 states and 56 transitions. cyclomatic complexity: 12. Second operand 3 states. Result 73 states and 92 transitions. Complement of second has 4 states. [2018-11-28 13:13:00,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 13:13:00,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:13:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2018-11-28 13:13:00,804 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 21 letters. Loop has 5 letters. [2018-11-28 13:13:00,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:00,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 26 letters. Loop has 5 letters. [2018-11-28 13:13:00,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:00,806 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 42 transitions. Stem has 21 letters. Loop has 10 letters. [2018-11-28 13:13:00,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:00,806 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 73 states and 92 transitions. [2018-11-28 13:13:00,807 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:00,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 73 states to 59 states and 75 transitions. [2018-11-28 13:13:00,808 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-28 13:13:00,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2018-11-28 13:13:00,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 75 transitions. [2018-11-28 13:13:00,808 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:00,808 INFO L705 BuchiCegarLoop]: Abstraction has 59 states and 75 transitions. [2018-11-28 13:13:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 75 transitions. [2018-11-28 13:13:00,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 58. [2018-11-28 13:13:00,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-11-28 13:13:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2018-11-28 13:13:00,810 INFO L728 BuchiCegarLoop]: Abstraction has 58 states and 74 transitions. [2018-11-28 13:13:00,810 INFO L608 BuchiCegarLoop]: Abstraction has 58 states and 74 transitions. [2018-11-28 13:13:00,810 INFO L442 BuchiCegarLoop]: ======== Iteration 11============ [2018-11-28 13:13:00,810 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 58 states and 74 transitions. [2018-11-28 13:13:00,811 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:00,811 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:00,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:00,812 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:00,812 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:13:00,812 INFO L794 eck$LassoCheckResult]: Stem: 1411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1388#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 1389#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1413#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1414#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1415#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1433#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1432#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1431#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1430#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1429#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1428#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1427#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1426#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1425#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1424#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1423#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1422#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1421#L79-3 assume !(main_~i~1 < 8); 1412#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 1380#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1381#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 1404#L55 assume parse_expression_list_#t~switch4; 1392#L56-5 [2018-11-28 13:13:00,812 INFO L796 eck$LassoCheckResult]: Loop: 1392#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 1398#L56-1 assume parse_expression_list_#t~short7; 1390#L56-3 assume !!parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6;parse_expression_list_#t~post8 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post8;havoc parse_expression_list_#t~post8; 1392#L56-5 [2018-11-28 13:13:00,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:00,812 INFO L82 PathProgramCache]: Analyzing trace with hash 898188797, now seen corresponding path program 1 times [2018-11-28 13:13:00,812 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:00,812 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:00,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:00,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:00,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:00,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:00,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:00,832 INFO L82 PathProgramCache]: Analyzing trace with hash 62664, now seen corresponding path program 1 times [2018-11-28 13:13:00,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:00,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:00,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:00,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:00,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:00,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:00,837 INFO L82 PathProgramCache]: Analyzing trace with hash 296230220, now seen corresponding path program 1 times [2018-11-28 13:13:00,837 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:00,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:00,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:00,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:00,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:00,938 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-28 13:13:00,939 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:13:00,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:13:00,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:13:00,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:13:00,966 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. cyclomatic complexity: 20 Second operand 7 states. [2018-11-28 13:13:01,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:01,057 INFO L93 Difference]: Finished difference Result 91 states and 118 transitions. [2018-11-28 13:13:01,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:13:01,058 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 118 transitions. [2018-11-28 13:13:01,058 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2018-11-28 13:13:01,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 91 states and 118 transitions. [2018-11-28 13:13:01,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-28 13:13:01,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-28 13:13:01,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 91 states and 118 transitions. [2018-11-28 13:13:01,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:01,060 INFO L705 BuchiCegarLoop]: Abstraction has 91 states and 118 transitions. [2018-11-28 13:13:01,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states and 118 transitions. [2018-11-28 13:13:01,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 65. [2018-11-28 13:13:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-11-28 13:13:01,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2018-11-28 13:13:01,062 INFO L728 BuchiCegarLoop]: Abstraction has 65 states and 83 transitions. [2018-11-28 13:13:01,062 INFO L608 BuchiCegarLoop]: Abstraction has 65 states and 83 transitions. [2018-11-28 13:13:01,062 INFO L442 BuchiCegarLoop]: ======== Iteration 12============ [2018-11-28 13:13:01,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 83 transitions. [2018-11-28 13:13:01,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:01,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:01,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:01,070 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:01,070 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:13:01,070 INFO L794 eck$LassoCheckResult]: Stem: 1582#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1557#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 1558#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1584#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1585#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1586#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1605#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1604#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1603#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1602#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1601#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1600#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1599#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1598#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1597#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1596#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1595#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1594#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1593#L79-3 assume !(main_~i~1 < 8); 1583#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 1549#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1550#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 1571#L55 assume !parse_expression_list_#t~switch4; 1563#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 1564#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 1574#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 1572#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 1573#L55 assume parse_expression_list_#t~switch4; 1578#L56-5 [2018-11-28 13:13:01,071 INFO L796 eck$LassoCheckResult]: Loop: 1578#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 1579#L56-1 assume parse_expression_list_#t~short7; 1609#L56-3 assume !!parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6;parse_expression_list_#t~post8 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post8;havoc parse_expression_list_#t~post8; 1578#L56-5 [2018-11-28 13:13:01,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:01,071 INFO L82 PathProgramCache]: Analyzing trace with hash -366788055, now seen corresponding path program 1 times [2018-11-28 13:13:01,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:01,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:01,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:01,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:01,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:01,091 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:01,091 INFO L82 PathProgramCache]: Analyzing trace with hash 62664, now seen corresponding path program 2 times [2018-11-28 13:13:01,091 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:01,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:01,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:01,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:01,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:01,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:01,095 INFO L82 PathProgramCache]: Analyzing trace with hash -586112608, now seen corresponding path program 1 times [2018-11-28 13:13:01,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:01,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:01,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:01,096 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:13:01,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:06,374 WARN L180 SmtUtils]: Spent 5.23 s on a formula simplification. DAG size of input: 232 DAG size of output: 170 [2018-11-28 13:13:06,573 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2018-11-28 13:13:06,575 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:13:06,575 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:13:06,575 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:13:06,575 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:13:06,575 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:13:06,575 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:13:06,575 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:13:06,575 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:13:06,576 INFO L131 ssoRankerPreferences]: Filename of dumped script: veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_Iteration12_Lasso [2018-11-28 13:13:06,576 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:13:06,576 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:13:06,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,586 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,587 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,588 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,737 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,742 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:06,966 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:13:06,966 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:13:06,967 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 [2018-11-28 13:13:06,967 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,967 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:06,967 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,968 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,968 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,968 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:06,968 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:06,969 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:06,969 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 [2018-11-28 13:13:06,973 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,974 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,974 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,974 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,974 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:06,975 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:06,976 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:06,976 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 [2018-11-28 13:13:06,976 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,976 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:06,977 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,977 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,977 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,977 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:06,977 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:06,977 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:06,978 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 [2018-11-28 13:13:06,978 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,978 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:06,978 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,978 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,978 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,978 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:06,979 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:06,979 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:06,979 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 [2018-11-28 13:13:06,979 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,979 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:06,980 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,980 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,980 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,980 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:06,980 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:06,980 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:06,981 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 [2018-11-28 13:13:06,981 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,981 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:06,981 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,987 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,987 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,987 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:06,987 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:06,988 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:06,988 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 [2018-11-28 13:13:06,988 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:06,989 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:06,989 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:06,989 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:06,990 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:06,990 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:06,999 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:13:07,009 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-28 13:13:07,009 INFO L444 ModelExtractionUtils]: 16 out of 22 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-28 13:13:07,010 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:13:07,011 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 13:13:07,011 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:13:07,011 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_parse_expression_list_~str.base)_2, ULTIMATE.start_parse_expression_list_~start~0, ULTIMATE.start_parse_expression_list_~str.offset) = 1*v_rep(select #length ULTIMATE.start_parse_expression_list_~str.base)_2 - 1*ULTIMATE.start_parse_expression_list_~start~0 - 1*ULTIMATE.start_parse_expression_list_~str.offset Supporting invariants [] [2018-11-28 13:13:07,029 INFO L297 tatePredicateManager]: 7 out of 7 supporting invariants were superfluous and have been removed [2018-11-28 13:13:07,034 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-11-28 13:13:07,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,062 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:07,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:13:07,069 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 13:13:07,069 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 65 states and 83 transitions. cyclomatic complexity: 22 Second operand 3 states. [2018-11-28 13:13:07,109 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 65 states and 83 transitions. cyclomatic complexity: 22. Second operand 3 states. Result 176 states and 237 transitions. Complement of second has 7 states. [2018-11-28 13:13:07,109 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 [2018-11-28 13:13:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 13:13:07,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 59 transitions. [2018-11-28 13:13:07,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 59 transitions. Stem has 28 letters. Loop has 3 letters. [2018-11-28 13:13:07,110 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:07,110 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 59 transitions. Stem has 31 letters. Loop has 3 letters. [2018-11-28 13:13:07,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:07,111 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 59 transitions. Stem has 28 letters. Loop has 6 letters. [2018-11-28 13:13:07,111 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:07,111 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 176 states and 237 transitions. [2018-11-28 13:13:07,112 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 18 [2018-11-28 13:13:07,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 176 states to 136 states and 181 transitions. [2018-11-28 13:13:07,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 34 [2018-11-28 13:13:07,115 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2018-11-28 13:13:07,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 136 states and 181 transitions. [2018-11-28 13:13:07,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:07,115 INFO L705 BuchiCegarLoop]: Abstraction has 136 states and 181 transitions. [2018-11-28 13:13:07,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states and 181 transitions. [2018-11-28 13:13:07,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 91. [2018-11-28 13:13:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-11-28 13:13:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 122 transitions. [2018-11-28 13:13:07,119 INFO L728 BuchiCegarLoop]: Abstraction has 91 states and 122 transitions. [2018-11-28 13:13:07,120 INFO L608 BuchiCegarLoop]: Abstraction has 91 states and 122 transitions. [2018-11-28 13:13:07,120 INFO L442 BuchiCegarLoop]: ======== Iteration 13============ [2018-11-28 13:13:07,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 91 states and 122 transitions. [2018-11-28 13:13:07,120 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:07,120 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:07,120 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:07,121 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:07,121 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:13:07,121 INFO L794 eck$LassoCheckResult]: Stem: 1973#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 1943#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 1944#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1975#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1976#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1977#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1997#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1996#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1995#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1994#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1993#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1992#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1991#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1990#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1989#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1988#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1987#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 1986#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 1985#L79-3 assume !(main_~i~1 < 8); 1974#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 1939#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 1940#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 1957#L55 assume parse_expression_list_#t~switch4; 1965#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 1966#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 2021#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 2015#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2019#L57 assume 34 == parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post10 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post10;havoc parse_expression_list_#t~post10; 1980#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 1935#L59-8 [2018-11-28 13:13:07,121 INFO L796 eck$LassoCheckResult]: Loop: 1935#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 1936#L59-1 assume !parse_expression_list_#t~short14; 1953#L59-6 assume !!parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14;parse_expression_list_#t~post15 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post15 - 1;havoc parse_expression_list_#t~post15; 1935#L59-8 [2018-11-28 13:13:07,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,122 INFO L82 PathProgramCache]: Analyzing trace with hash -1161474036, now seen corresponding path program 1 times [2018-11-28 13:13:07,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-28 13:13:07,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:13:07,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:13:07,254 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:13:07,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,255 INFO L82 PathProgramCache]: Analyzing trace with hash 89761, now seen corresponding path program 1 times [2018-11-28 13:13:07,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:13:07,262 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:13:07,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:13:07,262 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 13:13:07,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:13:07,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:13:07,262 INFO L87 Difference]: Start difference. First operand 91 states and 122 transitions. cyclomatic complexity: 38 Second operand 3 states. [2018-11-28 13:13:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:07,267 INFO L93 Difference]: Finished difference Result 93 states and 123 transitions. [2018-11-28 13:13:07,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:13:07,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 93 states and 123 transitions. [2018-11-28 13:13:07,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:07,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 93 states to 92 states and 122 transitions. [2018-11-28 13:13:07,269 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-28 13:13:07,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-28 13:13:07,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 122 transitions. [2018-11-28 13:13:07,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:07,269 INFO L705 BuchiCegarLoop]: Abstraction has 92 states and 122 transitions. [2018-11-28 13:13:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 122 transitions. [2018-11-28 13:13:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-11-28 13:13:07,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-11-28 13:13:07,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2018-11-28 13:13:07,272 INFO L728 BuchiCegarLoop]: Abstraction has 92 states and 122 transitions. [2018-11-28 13:13:07,272 INFO L608 BuchiCegarLoop]: Abstraction has 92 states and 122 transitions. [2018-11-28 13:13:07,272 INFO L442 BuchiCegarLoop]: ======== Iteration 14============ [2018-11-28 13:13:07,272 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 92 states and 122 transitions. [2018-11-28 13:13:07,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:07,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:07,273 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:07,274 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:07,274 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:13:07,274 INFO L794 eck$LassoCheckResult]: Stem: 2170#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 2138#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 2139#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2172#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2173#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2174#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2217#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2216#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2215#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2214#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2213#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2212#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2210#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2209#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2208#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2207#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2206#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2205#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2204#L79-3 assume !(main_~i~1 < 8); 2171#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 2130#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2131#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 2153#L55 assume parse_expression_list_#t~switch4; 2198#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 2147#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 2140#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 2141#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2157#L57 assume !(34 == parse_expression_list_#t~mem9);havoc parse_expression_list_#t~mem9; 2175#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2132#L59-8 [2018-11-28 13:13:07,274 INFO L796 eck$LassoCheckResult]: Loop: 2132#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 2133#L59-1 assume parse_expression_list_#t~short14;call parse_expression_list_#t~mem11 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short13 := 32 == parse_expression_list_#t~mem11; 2150#L59-2 assume parse_expression_list_#t~short13; 2177#L59-4 parse_expression_list_#t~short14 := parse_expression_list_#t~short13; 2169#L59-6 assume !!parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14;parse_expression_list_#t~post15 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post15 - 1;havoc parse_expression_list_#t~post15; 2132#L59-8 [2018-11-28 13:13:07,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1161473974, now seen corresponding path program 1 times [2018-11-28 13:13:07,274 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,275 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,298 INFO L82 PathProgramCache]: Analyzing trace with hash 85982918, now seen corresponding path program 1 times [2018-11-28 13:13:07,298 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,298 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1035891741, now seen corresponding path program 1 times [2018-11-28 13:13:07,306 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-28 13:13:07,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:13:07,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 13:13:07,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:13:07,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:13:07,375 INFO L87 Difference]: Start difference. First operand 92 states and 122 transitions. cyclomatic complexity: 37 Second operand 6 states. [2018-11-28 13:13:07,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:07,423 INFO L93 Difference]: Finished difference Result 143 states and 182 transitions. [2018-11-28 13:13:07,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:13:07,423 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 143 states and 182 transitions. [2018-11-28 13:13:07,424 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2018-11-28 13:13:07,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 143 states to 131 states and 169 transitions. [2018-11-28 13:13:07,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 30 [2018-11-28 13:13:07,424 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 30 [2018-11-28 13:13:07,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 169 transitions. [2018-11-28 13:13:07,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:07,425 INFO L705 BuchiCegarLoop]: Abstraction has 131 states and 169 transitions. [2018-11-28 13:13:07,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 169 transitions. [2018-11-28 13:13:07,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 96. [2018-11-28 13:13:07,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-28 13:13:07,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 124 transitions. [2018-11-28 13:13:07,428 INFO L728 BuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2018-11-28 13:13:07,428 INFO L608 BuchiCegarLoop]: Abstraction has 96 states and 124 transitions. [2018-11-28 13:13:07,428 INFO L442 BuchiCegarLoop]: ======== Iteration 15============ [2018-11-28 13:13:07,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 124 transitions. [2018-11-28 13:13:07,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:07,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:07,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:07,434 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:07,434 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:13:07,434 INFO L794 eck$LassoCheckResult]: Stem: 2416#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 2390#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 2391#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2418#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2419#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2420#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2454#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2453#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2452#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2451#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2450#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2449#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2448#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2447#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2446#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2445#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2444#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2443#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2442#L79-3 assume !(main_~i~1 < 8); 2417#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 2386#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2387#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 2405#L55 assume !parse_expression_list_#t~switch4; 2441#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 2473#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2472#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 2464#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 2461#L55 assume parse_expression_list_#t~switch4; 2458#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 2457#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 2392#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 2393#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2427#L57 assume !(34 == parse_expression_list_#t~mem9);havoc parse_expression_list_#t~mem9; 2421#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2382#L59-8 [2018-11-28 13:13:07,434 INFO L796 eck$LassoCheckResult]: Loop: 2382#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 2383#L59-1 assume parse_expression_list_#t~short14;call parse_expression_list_#t~mem11 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short13 := 32 == parse_expression_list_#t~mem11; 2402#L59-2 assume parse_expression_list_#t~short13; 2423#L59-4 parse_expression_list_#t~short14 := parse_expression_list_#t~short13; 2415#L59-6 assume !!parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14;parse_expression_list_#t~post15 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post15 - 1;havoc parse_expression_list_#t~post15; 2382#L59-8 [2018-11-28 13:13:07,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1836811402, now seen corresponding path program 1 times [2018-11-28 13:13:07,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,434 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,457 INFO L82 PathProgramCache]: Analyzing trace with hash 85982918, now seen corresponding path program 2 times [2018-11-28 13:13:07,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,460 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,460 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,463 INFO L82 PathProgramCache]: Analyzing trace with hash 282551409, now seen corresponding path program 1 times [2018-11-28 13:13:07,463 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,464 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:13:07,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,518 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-28 13:13:07,518 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:13:07,518 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:13:07,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:07,553 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:07,557 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-28 13:13:07,573 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:13:07,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2018-11-28 13:13:07,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:13:07,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:13:07,615 INFO L87 Difference]: Start difference. First operand 96 states and 124 transitions. cyclomatic complexity: 35 Second operand 7 states. [2018-11-28 13:13:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:07,684 INFO L93 Difference]: Finished difference Result 186 states and 244 transitions. [2018-11-28 13:13:07,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:13:07,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 186 states and 244 transitions. [2018-11-28 13:13:07,685 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 14 [2018-11-28 13:13:07,686 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 186 states to 171 states and 222 transitions. [2018-11-28 13:13:07,686 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 33 [2018-11-28 13:13:07,686 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 33 [2018-11-28 13:13:07,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 222 transitions. [2018-11-28 13:13:07,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:07,687 INFO L705 BuchiCegarLoop]: Abstraction has 171 states and 222 transitions. [2018-11-28 13:13:07,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 222 transitions. [2018-11-28 13:13:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 136. [2018-11-28 13:13:07,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2018-11-28 13:13:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 177 transitions. [2018-11-28 13:13:07,690 INFO L728 BuchiCegarLoop]: Abstraction has 136 states and 177 transitions. [2018-11-28 13:13:07,690 INFO L608 BuchiCegarLoop]: Abstraction has 136 states and 177 transitions. [2018-11-28 13:13:07,690 INFO L442 BuchiCegarLoop]: ======== Iteration 16============ [2018-11-28 13:13:07,690 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 136 states and 177 transitions. [2018-11-28 13:13:07,691 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2018-11-28 13:13:07,691 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:07,691 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:07,692 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:07,692 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 13:13:07,692 INFO L794 eck$LassoCheckResult]: Stem: 2834#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 2808#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 2809#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2836#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2837#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2838#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2848#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2864#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2863#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2862#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2861#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2860#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2859#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2858#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2857#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2856#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2855#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 2854#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 2853#L79-3 assume !(main_~i~1 < 8); 2835#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 2800#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 2801#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 2822#L55 assume !parse_expression_list_#t~switch4; 2915#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 2919#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2918#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 2917#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 2914#L55 assume !parse_expression_list_#t~switch4; 2909#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 2931#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 2930#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 2913#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 2908#L55 assume parse_expression_list_#t~switch4; 2903#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 2898#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 2894#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 2892#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 2888#L57 assume 34 == parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post10 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post10;havoc parse_expression_list_#t~post10; 2841#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 2802#L59-8 [2018-11-28 13:13:07,692 INFO L796 eck$LassoCheckResult]: Loop: 2802#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 2803#L59-1 assume parse_expression_list_#t~short14;call parse_expression_list_#t~mem11 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~j~0, 1);parse_expression_list_#t~short13 := 32 == parse_expression_list_#t~mem11; 2819#L59-2 assume parse_expression_list_#t~short13; 2844#L59-4 parse_expression_list_#t~short14 := parse_expression_list_#t~short13; 2833#L59-6 assume !!parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14;parse_expression_list_#t~post15 := parse_expression_list_~j~0;parse_expression_list_~j~0 := parse_expression_list_#t~post15 - 1;havoc parse_expression_list_#t~post15; 2802#L59-8 [2018-11-28 13:13:07,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1704815500, now seen corresponding path program 1 times [2018-11-28 13:13:07,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,711 INFO L82 PathProgramCache]: Analyzing trace with hash 85982918, now seen corresponding path program 3 times [2018-11-28 13:13:07,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:07,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:07,714 INFO L82 PathProgramCache]: Analyzing trace with hash 492769819, now seen corresponding path program 1 times [2018-11-28 13:13:07,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:07,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:07,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,715 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:13:07,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:07,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:07,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:13,311 WARN L180 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 287 DAG size of output: 200 [2018-11-28 13:13:13,498 WARN L180 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2018-11-28 13:13:13,500 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:13:13,500 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:13:13,500 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:13:13,500 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:13:13,500 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:13:13,500 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:13:13,500 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:13:13,500 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:13:13,500 INFO L131 ssoRankerPreferences]: Filename of dumped script: veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_Iteration16_Lasso [2018-11-28 13:13:13,500 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:13:13,501 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:13:13,503 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,506 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,509 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,516 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,518 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,520 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,522 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,529 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,546 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,555 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,557 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,682 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:13:13,836 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:13:13,836 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:13:13,837 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 [2018-11-28 13:13:13,837 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,837 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,837 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,837 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,838 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,838 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,838 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,839 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,839 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 [2018-11-28 13:13:13,839 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,839 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,840 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,840 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,840 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,840 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,840 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,841 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,841 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 [2018-11-28 13:13:13,841 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,841 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,841 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,841 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,842 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,842 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,842 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,842 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,843 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 [2018-11-28 13:13:13,843 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,843 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,843 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,843 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,844 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,844 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,845 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,845 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 [2018-11-28 13:13:13,846 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,846 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,846 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,846 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,846 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,846 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,846 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,847 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,847 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 [2018-11-28 13:13:13,847 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,847 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,848 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,848 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,848 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,848 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,848 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,848 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,849 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 [2018-11-28 13:13:13,849 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,849 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,849 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,849 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,850 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,850 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,850 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,850 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,851 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 [2018-11-28 13:13:13,851 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,851 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,851 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,851 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,851 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,852 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,852 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,852 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,852 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 [2018-11-28 13:13:13,853 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,853 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,853 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,853 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,853 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,853 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,853 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,854 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,854 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 [2018-11-28 13:13:13,854 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,854 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,855 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,855 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,856 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,856 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 [2018-11-28 13:13:13,856 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,857 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,857 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,857 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,858 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,858 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 [2018-11-28 13:13:13,858 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,858 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,859 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,859 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,859 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,859 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,859 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,859 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,859 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 [2018-11-28 13:13:13,860 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,860 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,860 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,860 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,860 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,860 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,860 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,860 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,861 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 [2018-11-28 13:13:13,861 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,861 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,861 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,861 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,862 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,862 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,863 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,863 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 [2018-11-28 13:13:13,864 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,864 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,864 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,864 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,864 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,864 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,865 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,865 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,865 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 [2018-11-28 13:13:13,865 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,866 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,866 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,866 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,866 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,867 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,867 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 [2018-11-28 13:13:13,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,868 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,868 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,868 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,868 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,869 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,869 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 [2018-11-28 13:13:13,869 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,869 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,870 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,870 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,870 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,870 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,871 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,872 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 [2018-11-28 13:13:13,872 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,872 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,872 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,873 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,873 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,873 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,873 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 [2018-11-28 13:13:13,874 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,874 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,874 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,874 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,874 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,875 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,875 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,875 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,875 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 [2018-11-28 13:13:13,876 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,876 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,876 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,876 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,876 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,876 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,877 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,877 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,877 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 [2018-11-28 13:13:13,878 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,878 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,878 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,878 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,878 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,878 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,878 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,879 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,879 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 [2018-11-28 13:13:13,879 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,879 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,880 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,880 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,880 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,880 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,880 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,880 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,880 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 [2018-11-28 13:13:13,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,881 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:13:13,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,881 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:13:13,881 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:13:13,882 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,882 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 [2018-11-28 13:13:13,882 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,882 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,883 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,883 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,883 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,885 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,885 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 [2018-11-28 13:13:13,885 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,885 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,885 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,886 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,886 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,886 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,888 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,888 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 [2018-11-28 13:13:13,888 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,888 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,889 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,889 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,889 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,890 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,891 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,891 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 [2018-11-28 13:13:13,891 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,891 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,892 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,892 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,892 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,892 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,894 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,894 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 [2018-11-28 13:13:13,894 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,894 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-28 13:13:13,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,896 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-28 13:13:13,896 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,899 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,900 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 [2018-11-28 13:13:13,900 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,900 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-28 13:13:13,900 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,900 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,901 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-28 13:13:13,901 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,916 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,916 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 [2018-11-28 13:13:13,917 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,917 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2018-11-28 13:13:13,917 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,917 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,918 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2018-11-28 13:13:13,918 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,920 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,921 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 [2018-11-28 13:13:13,921 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,921 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,921 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,921 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,922 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,922 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,923 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,923 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 [2018-11-28 13:13:13,924 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,924 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,924 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,924 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,924 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,925 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,925 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,926 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 [2018-11-28 13:13:13,926 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,926 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,926 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,926 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,927 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,927 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,929 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:13:13,929 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 [2018-11-28 13:13:13,930 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:13:13,930 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:13:13,930 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:13:13,930 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:13:13,931 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:13:13,931 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:13:13,937 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:13:13,958 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-28 13:13:13,958 INFO L444 ModelExtractionUtils]: 16 out of 25 variables were initially zero. Simplification set additionally 7 variables to zero. [2018-11-28 13:13:13,959 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:13:13,959 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2018-11-28 13:13:13,960 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:13:13,960 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_parse_expression_list_~j~0) = 1*ULTIMATE.start_parse_expression_list_~j~0 Supporting invariants [] [2018-11-28 13:13:14,088 INFO L297 tatePredicateManager]: 9 out of 9 supporting invariants were superfluous and have been removed [2018-11-28 13:13:14,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:14,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:14,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:13:14,130 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 [2018-11-28 13:13:14,130 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 136 states and 177 transitions. cyclomatic complexity: 51 Second operand 4 states. [2018-11-28 13:13:14,195 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 136 states and 177 transitions. cyclomatic complexity: 51. Second operand 4 states. Result 296 states and 391 transitions. Complement of second has 11 states. [2018-11-28 13:13:14,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2018-11-28 13:13:14,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 13:13:14,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 82 transitions. [2018-11-28 13:13:14,197 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 82 transitions. Stem has 39 letters. Loop has 5 letters. [2018-11-28 13:13:14,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:14,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 82 transitions. Stem has 44 letters. Loop has 5 letters. [2018-11-28 13:13:14,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:14,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 82 transitions. Stem has 39 letters. Loop has 10 letters. [2018-11-28 13:13:14,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:13:14,199 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 296 states and 391 transitions. [2018-11-28 13:13:14,200 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 17 [2018-11-28 13:13:14,201 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 296 states to 196 states and 256 transitions. [2018-11-28 13:13:14,201 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2018-11-28 13:13:14,202 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 32 [2018-11-28 13:13:14,202 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 256 transitions. [2018-11-28 13:13:14,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:14,202 INFO L705 BuchiCegarLoop]: Abstraction has 196 states and 256 transitions. [2018-11-28 13:13:14,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 256 transitions. [2018-11-28 13:13:14,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 142. [2018-11-28 13:13:14,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2018-11-28 13:13:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 184 transitions. [2018-11-28 13:13:14,210 INFO L728 BuchiCegarLoop]: Abstraction has 142 states and 184 transitions. [2018-11-28 13:13:14,210 INFO L608 BuchiCegarLoop]: Abstraction has 142 states and 184 transitions. [2018-11-28 13:13:14,210 INFO L442 BuchiCegarLoop]: ======== Iteration 17============ [2018-11-28 13:13:14,210 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 142 states and 184 transitions. [2018-11-28 13:13:14,211 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 11 [2018-11-28 13:13:14,211 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:14,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:14,214 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:14,214 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:13:14,214 INFO L794 eck$LassoCheckResult]: Stem: 3465#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3441#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 3442#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3467#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3468#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3469#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3490#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3489#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3488#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3487#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3486#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3485#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3484#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3483#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3482#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3481#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3480#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3479#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3478#L79-3 assume !(main_~i~1 < 8); 3466#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 3433#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 3434#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 3453#L55 assume parse_expression_list_#t~switch4; 3526#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 3558#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 3556#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 3554#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 3553#L57 assume !(34 == parse_expression_list_#t~mem9);havoc parse_expression_list_#t~mem9; 3551#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 3550#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 3549#L59-1 assume !parse_expression_list_#t~short14; 3548#L59-6 assume !parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14; 3547#L59-9 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 3546#L60 assume !parse_expression_list_#t~short17; 3545#L60-2 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem16; 3544#L60-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0; 3543#L62 assume !(1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) >= 2);r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset;havoc r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset; 3542#L31 parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3541#L4 assume !(0 == __VERIFIER_assert_~cond); 3540#L4-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 3539#L61 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 3538#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 3537#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 3536#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 3535#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 3534#L55 assume parse_expression_list_#t~switch4; 3444#L56-5 [2018-11-28 13:13:14,214 INFO L796 eck$LassoCheckResult]: Loop: 3444#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 3449#L56-1 assume parse_expression_list_#t~short7; 3443#L56-3 assume !!parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6;parse_expression_list_#t~post8 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post8;havoc parse_expression_list_#t~post8; 3444#L56-5 [2018-11-28 13:13:14,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:14,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1896680144, now seen corresponding path program 1 times [2018-11-28 13:13:14,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:14,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:14,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:14,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:14,292 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-11-28 13:13:14,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:13:14,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 13:13:14,293 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:13:14,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:14,293 INFO L82 PathProgramCache]: Analyzing trace with hash 62664, now seen corresponding path program 3 times [2018-11-28 13:13:14,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:14,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:14,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:14,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:14,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:14,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 13:13:14,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 13:13:14,341 INFO L87 Difference]: Start difference. First operand 142 states and 184 transitions. cyclomatic complexity: 52 Second operand 7 states. [2018-11-28 13:13:14,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:14,434 INFO L93 Difference]: Finished difference Result 124 states and 159 transitions. [2018-11-28 13:13:14,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 13:13:14,438 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 159 transitions. [2018-11-28 13:13:14,438 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:14,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 107 states and 139 transitions. [2018-11-28 13:13:14,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2018-11-28 13:13:14,439 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-28 13:13:14,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 139 transitions. [2018-11-28 13:13:14,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:14,439 INFO L705 BuchiCegarLoop]: Abstraction has 107 states and 139 transitions. [2018-11-28 13:13:14,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 139 transitions. [2018-11-28 13:13:14,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-11-28 13:13:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-28 13:13:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 139 transitions. [2018-11-28 13:13:14,442 INFO L728 BuchiCegarLoop]: Abstraction has 107 states and 139 transitions. [2018-11-28 13:13:14,442 INFO L608 BuchiCegarLoop]: Abstraction has 107 states and 139 transitions. [2018-11-28 13:13:14,442 INFO L442 BuchiCegarLoop]: ======== Iteration 18============ [2018-11-28 13:13:14,442 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 139 transitions. [2018-11-28 13:13:14,443 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:14,443 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:14,443 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:14,443 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:14,443 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:13:14,444 INFO L794 eck$LassoCheckResult]: Stem: 3750#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3724#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 3725#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3752#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3753#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3754#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3761#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3784#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3782#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3779#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3776#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3775#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3774#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3773#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3771#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3769#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3767#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 3764#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 3763#L79-3 assume !(main_~i~1 < 8); 3751#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 3716#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 3717#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 3737#L55 assume !parse_expression_list_#t~switch4; 3731#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 3732#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 3740#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 3738#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 3739#L55 assume parse_expression_list_#t~switch4; 3745#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 3746#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 3817#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 3818#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 3816#L57 assume 34 == parse_expression_list_#t~mem9;havoc parse_expression_list_#t~mem9;parse_expression_list_#t~post10 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post10;havoc parse_expression_list_#t~post10; 3756#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 3720#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 3721#L59-1 assume !parse_expression_list_#t~short14; 3736#L59-6 assume !parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14; 3749#L59-9 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 3781#L60 assume !parse_expression_list_#t~short17; 3778#L60-2 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem16; 3713#L60-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0; 3722#L62 assume !(1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) >= 2);r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset;havoc r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset; 3723#L31 parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 3747#L4 assume !(0 == __VERIFIER_assert_~cond); 3760#L4-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 3743#L61 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 3744#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 3772#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 3770#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 3768#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 3765#L55 assume parse_expression_list_#t~switch4; 3728#L56-5 [2018-11-28 13:13:14,444 INFO L796 eck$LassoCheckResult]: Loop: 3728#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 3733#L56-1 assume parse_expression_list_#t~short7; 3726#L56-3 assume !!parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6;parse_expression_list_#t~post8 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post8;havoc parse_expression_list_#t~post8; 3728#L56-5 [2018-11-28 13:13:14,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:14,444 INFO L82 PathProgramCache]: Analyzing trace with hash -70433790, now seen corresponding path program 1 times [2018-11-28 13:13:14,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:14,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:14,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,445 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:13:14,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2018-11-28 13:13:14,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:13:14,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 13:13:14,520 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:13:14,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:14,520 INFO L82 PathProgramCache]: Analyzing trace with hash 62664, now seen corresponding path program 4 times [2018-11-28 13:13:14,520 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:14,520 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:14,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:14,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:14,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 13:13:14,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-28 13:13:14,561 INFO L87 Difference]: Start difference. First operand 107 states and 139 transitions. cyclomatic complexity: 40 Second operand 9 states. [2018-11-28 13:13:14,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:14,783 INFO L93 Difference]: Finished difference Result 180 states and 240 transitions. [2018-11-28 13:13:14,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 13:13:14,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 240 transitions. [2018-11-28 13:13:14,785 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 13 [2018-11-28 13:13:14,785 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 159 states and 209 transitions. [2018-11-28 13:13:14,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 28 [2018-11-28 13:13:14,786 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2018-11-28 13:13:14,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 209 transitions. [2018-11-28 13:13:14,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 13:13:14,786 INFO L705 BuchiCegarLoop]: Abstraction has 159 states and 209 transitions. [2018-11-28 13:13:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 209 transitions. [2018-11-28 13:13:14,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 126. [2018-11-28 13:13:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-11-28 13:13:14,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 165 transitions. [2018-11-28 13:13:14,788 INFO L728 BuchiCegarLoop]: Abstraction has 126 states and 165 transitions. [2018-11-28 13:13:14,788 INFO L608 BuchiCegarLoop]: Abstraction has 126 states and 165 transitions. [2018-11-28 13:13:14,788 INFO L442 BuchiCegarLoop]: ======== Iteration 19============ [2018-11-28 13:13:14,789 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 165 transitions. [2018-11-28 13:13:14,789 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 13:13:14,789 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:13:14,789 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:13:14,790 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [8, 8, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:13:14,790 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 13:13:14,790 INFO L794 eck$LassoCheckResult]: Stem: 4065#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 4038#L-1 havoc main_#res;havoc main_#t~nondet21, main_#t~post20, main_~i~1, main_#t~ret22, main_~#A~0.base, main_~#A~0.offset;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.alloc(9);main_~i~1 := 0; 4039#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4067#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4068#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4069#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4089#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4088#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4087#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4086#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4085#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4084#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4083#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4082#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4081#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4080#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4079#L79-3 assume !!(main_~i~1 < 8);call write~int(main_#t~nondet21, main_~#A~0.base, main_~#A~0.offset + main_~i~1, 1);havoc main_#t~nondet21; 4078#L79-2 main_#t~post20 := main_~i~1;main_~i~1 := 1 + main_#t~post20;havoc main_#t~post20; 4077#L79-3 assume !(main_~i~1 < 8); 4066#L79-4 call write~int(0, main_~#A~0.base, 8 + main_~#A~0.offset, 1);parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset := main_~#A~0.base, main_~#A~0.offset;havoc parse_expression_list_#res;havoc parse_expression_list_#t~post2, parse_expression_list_#t~mem3, parse_expression_list_#t~switch4, parse_expression_list_#t~post8, parse_expression_list_#t~mem5, parse_expression_list_#t~mem6, parse_expression_list_#t~short7, parse_expression_list_#t~mem9, parse_expression_list_#t~post10, parse_expression_list_#t~post15, parse_expression_list_#t~mem11, parse_expression_list_#t~mem12, parse_expression_list_#t~short13, parse_expression_list_#t~short14, parse_expression_list_#t~mem16, parse_expression_list_#t~short17, parse_expression_list_#t~post18, parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset, parse_expression_list_#t~mem1, parse_expression_list_~str.base, parse_expression_list_~str.offset, parse_expression_list_~start~0, parse_expression_list_~i~0, parse_expression_list_~j~0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset;parse_expression_list_~str.base, parse_expression_list_~str.offset := parse_expression_list_#in~str.base, parse_expression_list_#in~str.offset;parse_expression_list_~start~0 := 0;parse_expression_list_~i~0 := -1;parse_expression_list_~j~0 := -1;call parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset := #Ultimate.alloc(2); 4030#L51 assume !(parse_expression_list_~str.base == 0 && parse_expression_list_~str.offset == 0); 4031#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 4051#L55 assume !parse_expression_list_#t~switch4; 4119#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 4118#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 4117#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 4052#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 4053#L55 assume parse_expression_list_#t~switch4; 4060#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 4048#L56-1 assume !parse_expression_list_#t~short7;call parse_expression_list_#t~mem6 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 9 == parse_expression_list_#t~mem6; 4043#L56-3 assume !parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6; 4044#L56-6 call parse_expression_list_#t~mem9 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1); 4057#L57 assume !(34 == parse_expression_list_#t~mem9);havoc parse_expression_list_#t~mem9; 4071#L57-2 parse_expression_list_~j~0 := parse_expression_list_~i~0 - 1; 4034#L59-8 parse_expression_list_#t~short14 := 0 < parse_expression_list_~j~0; 4035#L59-1 assume !parse_expression_list_#t~short14; 4050#L59-6 assume !parse_expression_list_#t~short14;havoc parse_expression_list_#t~mem11;havoc parse_expression_list_#t~mem12;havoc parse_expression_list_#t~short13;havoc parse_expression_list_#t~short14; 4098#L59-9 parse_expression_list_#t~short17 := 0 < parse_expression_list_~j~0; 4097#L60 assume !parse_expression_list_#t~short17; 4096#L60-2 assume !parse_expression_list_#t~short17;havoc parse_expression_list_#t~short17;havoc parse_expression_list_#t~mem16; 4026#L60-4 assume parse_expression_list_~start~0 <= parse_expression_list_~j~0; 4036#L62 assume !(1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) >= 2);r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset, r_strncpy_#in~src.base, r_strncpy_#in~src.offset, r_strncpy_#in~n := parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset, parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0);havoc r_strncpy_#res.base, r_strncpy_#res.offset;havoc r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset, r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n;r_strncpy_~dest.base, r_strncpy_~dest.offset := r_strncpy_#in~dest.base, r_strncpy_#in~dest.offset;r_strncpy_~src.base, r_strncpy_~src.offset := r_strncpy_#in~src.base, r_strncpy_#in~src.offset;r_strncpy_~n := r_strncpy_#in~n;call r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset := strncpy(r_strncpy_~dest.base, r_strncpy_~dest.offset, r_strncpy_~src.base, r_strncpy_~src.offset, r_strncpy_~n);r_strncpy_#res.base, r_strncpy_#res.offset := r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset;havoc r_strncpy_#t~ret0.base, r_strncpy_#t~ret0.offset; 4037#L31 parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset := r_strncpy_#res.base, r_strncpy_#res.offset;havoc parse_expression_list_#t~ret19.base, parse_expression_list_#t~ret19.offset;__VERIFIER_assert_#in~cond := (if 1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0) < 2 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 4061#L4 assume !(0 == __VERIFIER_assert_~cond); 4075#L4-2 call write~int(0, parse_expression_list_~#str2~0.base, parse_expression_list_~#str2~0.offset + (1 + (parse_expression_list_~j~0 - parse_expression_list_~start~0)), 1); 4058#L61 parse_expression_list_~start~0 := 1 + parse_expression_list_~i~0; 4059#L54 havoc parse_expression_list_#t~mem3;havoc parse_expression_list_#t~switch4; 4094#L52-1 call parse_expression_list_#t~mem1 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1); 4093#L52-2 assume !!(0 != parse_expression_list_#t~mem1);havoc parse_expression_list_#t~mem1; 4092#L52-4 parse_expression_list_#t~post2 := parse_expression_list_~i~0;parse_expression_list_~i~0 := 1 + parse_expression_list_#t~post2;havoc parse_expression_list_#t~post2;call parse_expression_list_#t~mem3 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~i~0, 1);parse_expression_list_#t~switch4 := 0 == parse_expression_list_#t~mem3; 4090#L55 assume parse_expression_list_#t~switch4; 4042#L56-5 [2018-11-28 13:13:14,790 INFO L796 eck$LassoCheckResult]: Loop: 4042#L56-5 call parse_expression_list_#t~mem5 := read~int(parse_expression_list_~str.base, parse_expression_list_~str.offset + parse_expression_list_~start~0, 1);parse_expression_list_#t~short7 := 32 == parse_expression_list_#t~mem5; 4047#L56-1 assume parse_expression_list_#t~short7; 4040#L56-3 assume !!parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem5;havoc parse_expression_list_#t~short7;havoc parse_expression_list_#t~mem6;parse_expression_list_#t~post8 := parse_expression_list_~start~0;parse_expression_list_~start~0 := 1 + parse_expression_list_#t~post8;havoc parse_expression_list_#t~post8; 4042#L56-5 [2018-11-28 13:13:14,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:14,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1759377532, now seen corresponding path program 1 times [2018-11-28 13:13:14,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:14,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:14,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,791 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:13:14,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:14,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:14,868 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-11-28 13:13:14,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 13:13:14,868 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1d07769-25b9-4a01-9bc6-15aa369667a2/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 13:13:14,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:13:14,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:13:14,907 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 6 treesize of output 5 [2018-11-28 13:13:14,908 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:13:14,913 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:13:14,913 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-11-28 13:13:14,925 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:13:14,929 INFO L701 Elim1Store]: detected not equals via solver [2018-11-28 13:13:14,930 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-11-28 13:13:14,930 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-28 13:13:14,932 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:13:14,932 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-11-28 13:13:14,981 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 28 [2018-11-28 13:13:14,983 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 14 treesize of output 13 [2018-11-28 13:13:14,983 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:13:14,988 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:13:14,992 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-11-28 13:13:14,992 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:31, output treesize:27 [2018-11-28 13:13:15,015 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2018-11-28 13:13:15,017 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 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 11 treesize of output 1 [2018-11-28 13:13:15,017 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-28 13:13:15,021 INFO L683 Elim1Store]: detected equality via solver [2018-11-28 13:13:15,021 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-11-28 13:13:15,022 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-28 13:13:15,024 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:13:15,026 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-28 13:13:15,026 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 8 variables, input treesize:36, output treesize:3 [2018-11-28 13:13:15,035 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2018-11-28 13:13:15,050 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 13:13:15,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 11 [2018-11-28 13:13:15,050 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:13:15,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:13:15,051 INFO L82 PathProgramCache]: Analyzing trace with hash 62664, now seen corresponding path program 5 times [2018-11-28 13:13:15,051 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:13:15,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:13:15,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:15,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:13:15,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:13:15,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:13:15,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 13:13:15,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-11-28 13:13:15,081 INFO L87 Difference]: Start difference. First operand 126 states and 165 transitions. cyclomatic complexity: 47 Second operand 11 states. [2018-11-28 13:13:15,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:13:15,212 INFO L93 Difference]: Finished difference Result 91 states and 112 transitions. [2018-11-28 13:13:15,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 13:13:15,212 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 91 states and 112 transitions. [2018-11-28 13:13:15,213 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:13:15,213 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 91 states to 0 states and 0 transitions. [2018-11-28 13:13:15,213 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:13:15,213 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:13:15,213 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:13:15,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:13:15,213 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:13:15,213 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:13:15,213 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:13:15,213 INFO L442 BuchiCegarLoop]: ======== Iteration 20============ [2018-11-28 13:13:15,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:13:15,213 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:13:15,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:13:15,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:13:15 BoogieIcfgContainer [2018-11-28 13:13:15,220 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:13:15,221 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:13:15,221 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:13:15,221 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:13:15,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:12:54" (3/4) ... [2018-11-28 13:13:15,224 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:13:15,224 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:13:15,225 INFO L168 Benchmark]: Toolchain (without parser) took 21283.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 186.6 MB). Free memory was 958.7 MB in the beginning and 910.1 MB in the end (delta: 48.6 MB). Peak memory consumption was 235.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:13:15,226 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:13:15,226 INFO L168 Benchmark]: CACSL2BoogieTranslator took 173.10 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 945.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:13:15,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:13:15,227 INFO L168 Benchmark]: Boogie Preprocessor took 16.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:13:15,228 INFO L168 Benchmark]: RCFGBuilder took 312.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. [2018-11-28 13:13:15,228 INFO L168 Benchmark]: BuchiAutomizer took 20707.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 910.1 MB in the end (delta: 181.8 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:13:15,228 INFO L168 Benchmark]: Witness Printer took 3.63 ms. Allocated memory is still 1.2 GB. Free memory is still 910.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:13:15,232 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 173.10 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 945.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 67.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -172.8 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 312.27 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 20707.50 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 66.6 MB). Free memory was 1.1 GB in the beginning and 910.1 MB in the end (delta: 181.8 MB). Peak memory consumption was 248.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.63 ms. Allocated memory is still 1.2 GB. Free memory is still 910.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 19 terminating modules (15 trivial, 4 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 15 * unknown-#length-unknown[A] + -2 * i and consists of 5 locations. One deterministic module has affine ranking function unknown-#length-unknown[str] + -1 * str + -1 * i and consists of 3 locations. One deterministic module has affine ranking function unknown-#length-unknown[str] + -1 * start + -1 * str and consists of 4 locations. One deterministic module has affine ranking function j and consists of 6 locations. 15 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 20.6s and 20 iterations. TraceHistogramMax:8. Analysis of lassos took 19.2s. Construction of modules took 0.5s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 10. Minimization of nondet autom 9. Automata minimization 0.0s AutomataMinimizationTime, 18 MinimizatonAttempts, 236 StatesRemovedByMinimization, 14 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 142 states and ocurred in iteration 16. Nontrivial modules had stage [4, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 694 SDtfs, 889 SDslu, 1858 SDs, 0 SdLazy, 829 SolverSat, 108 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc3 concLT0 SILN0 SILU11 SILI1 SILT0 lasso4 LassoPreprocessingBenchmarks: Lassos: inital170 mio100 ax100 hnf100 lsp92 ukn55 mio100 lsp49 div100 bol100 ite100 ukn100 eq180 hnf88 smp100 dnf100 smp100 tf100 neg100 sie101 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 4ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...