./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse_true-unreach-call_true-valid-memsafety.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse_true-unreach-call_true-valid-memsafety.i -s /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 37440c69f444d214751d1c949a02dfc2bef21892 ........................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:50:19,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:50:19,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:50:19,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:50:19,195 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:50:19,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:50:19,196 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:50:19,198 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:50:19,200 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:50:19,200 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:50:19,201 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:50:19,201 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:50:19,202 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:50:19,202 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:50:19,204 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:50:19,204 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:50:19,205 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:50:19,206 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:50:19,208 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:50:19,209 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:50:19,210 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:50:19,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:50:19,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:50:19,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:50:19,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:50:19,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:50:19,214 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:50:19,217 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:50:19,217 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:50:19,218 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:50:19,218 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:50:19,218 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:50:19,219 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:50:19,219 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:50:19,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:50:19,220 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:50:19,220 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:50:19,234 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:50:19,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:50:19,234 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:50:19,235 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:50:19,235 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:50:19,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:50:19,236 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:50:19,236 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:50:19,236 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:50:19,237 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:50:19,238 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:50:19,238 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:50:19,238 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:50:19,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:50:19,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:50:19,238 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:50:19,238 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:50:19,238 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:50:19,240 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:50:19,240 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:50:19,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:50:19,240 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:50:19,240 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan 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(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan 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 -> 37440c69f444d214751d1c949a02dfc2bef21892 [2018-10-27 00:50:19,276 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:50:19,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:50:19,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:50:19,296 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:50:19,297 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:50:19,297 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/../../sv-benchmarks/c/list-simple/dll2n_update_all_reverse_true-unreach-call_true-valid-memsafety.i [2018-10-27 00:50:19,346 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/data/83392d0a3/7b641ea986294cc193e66c40bb8f0eae/FLAGd66a1c60f [2018-10-27 00:50:19,759 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:50:19,760 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/sv-benchmarks/c/list-simple/dll2n_update_all_reverse_true-unreach-call_true-valid-memsafety.i [2018-10-27 00:50:19,771 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/data/83392d0a3/7b641ea986294cc193e66c40bb8f0eae/FLAGd66a1c60f [2018-10-27 00:50:19,782 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/data/83392d0a3/7b641ea986294cc193e66c40bb8f0eae [2018-10-27 00:50:19,784 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:50:19,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:50:19,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:50:19,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:50:19,790 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:50:19,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:50:19" (1/1) ... [2018-10-27 00:50:19,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b3862b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:19, skipping insertion in model container [2018-10-27 00:50:19,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:50:19" (1/1) ... [2018-10-27 00:50:19,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:50:19,835 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:50:20,067 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:50:20,074 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:50:20,112 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:50:20,148 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:50:20,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20 WrapperNode [2018-10-27 00:50:20,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:50:20,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:50:20,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:50:20,150 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:50:20,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:50:20,254 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:50:20,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:50:20,254 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:50:20,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,280 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... [2018-10-27 00:50:20,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:50:20,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:50:20,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:50:20,283 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:50:20,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:50:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure dll_destroy [2018-10-27 00:50:20,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_destroy [2018-10-27 00:50:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure dll_get_data_at [2018-10-27 00:50:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_get_data_at [2018-10-27 00:50:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-27 00:50:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure exit [2018-10-27 00:50:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure dll_update_at [2018-10-27 00:50:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_update_at [2018-10-27 00:50:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:50:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:50:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:50:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:50:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure dll_create [2018-10-27 00:50:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dll_create [2018-10-27 00:50:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:50:20,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:50:20,958 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:50:20,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:20 BoogieIcfgContainer [2018-10-27 00:50:20,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:50:20,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:50:20,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:50:20,968 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:50:20,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:50:19" (1/3) ... [2018-10-27 00:50:20,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beff412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:50:20, skipping insertion in model container [2018-10-27 00:50:20,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:50:20" (2/3) ... [2018-10-27 00:50:20,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5beff412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:50:20, skipping insertion in model container [2018-10-27 00:50:20,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:20" (3/3) ... [2018-10-27 00:50:20,971 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2n_update_all_reverse_true-unreach-call_true-valid-memsafety.i [2018-10-27 00:50:20,978 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:50:20,984 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:50:20,993 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:50:21,016 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:50:21,016 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:50:21,016 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:50:21,016 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:50:21,016 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:50:21,016 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:50:21,016 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:50:21,017 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:50:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2018-10-27 00:50:21,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-27 00:50:21,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:50:21,038 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 00:50:21,039 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:50:21,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:50:21,044 INFO L82 PathProgramCache]: Analyzing trace with hash -896335984, now seen corresponding path program 1 times [2018-10-27 00:50:21,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:50:21,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:50:21,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:50:21,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:50:21,083 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:50:21,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:50:21,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:50:21,157 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:50:21,157 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:50:21,157 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:50:21,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:50:21,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:50:21,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:50:21,171 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 2 states. [2018-10-27 00:50:21,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:50:21,190 INFO L93 Difference]: Finished difference Result 97 states and 123 transitions. [2018-10-27 00:50:21,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:50:21,191 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 26 [2018-10-27 00:50:21,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:50:21,199 INFO L225 Difference]: With dead ends: 97 [2018-10-27 00:50:21,199 INFO L226 Difference]: Without dead ends: 43 [2018-10-27 00:50:21,202 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:50:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-27 00:50:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-10-27 00:50:21,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-27 00:50:21,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2018-10-27 00:50:21,237 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 26 [2018-10-27 00:50:21,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:50:21,238 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2018-10-27 00:50:21,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:50:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2018-10-27 00:50:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-10-27 00:50:21,239 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:50:21,239 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-10-27 00:50:21,239 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:50:21,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:50:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash 827122714, now seen corresponding path program 1 times [2018-10-27 00:50:21,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:50:21,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:50:21,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:50:21,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:50:21,244 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:50:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:50:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:50:21,329 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:50:21,329 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 00:50:21,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:50:21,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 00:50:21,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 00:50:21,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 00:50:21,337 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 4 states. [2018-10-27 00:50:21,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:50:21,450 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2018-10-27 00:50:21,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 00:50:21,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-10-27 00:50:21,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:50:21,452 INFO L225 Difference]: With dead ends: 50 [2018-10-27 00:50:21,452 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:50:21,453 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:50:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:50:21,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:50:21,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:50:21,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:50:21,453 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-10-27 00:50:21,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:50:21,454 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:50:21,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 00:50:21,454 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:50:21,454 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:50:21,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:50:21,636 INFO L425 ceAbstractionStarter]: For program point L607-1(lines 607 610) no Hoare annotation was computed. [2018-10-27 00:50:21,637 INFO L428 ceAbstractionStarter]: At program point L607-3(lines 607 610) the Hoare annotation is: true [2018-10-27 00:50:21,637 INFO L425 ceAbstractionStarter]: For program point L607-4(lines 607 610) no Hoare annotation was computed. [2018-10-27 00:50:21,637 INFO L428 ceAbstractionStarter]: At program point dll_update_atENTRY(lines 606 612) the Hoare annotation is: true [2018-10-27 00:50:21,637 INFO L425 ceAbstractionStarter]: For program point dll_update_atEXIT(lines 606 612) no Hoare annotation was computed. [2018-10-27 00:50:21,637 INFO L425 ceAbstractionStarter]: For program point dll_update_atFINAL(lines 606 612) no Hoare annotation was computed. [2018-10-27 00:50:21,637 INFO L425 ceAbstractionStarter]: For program point exitEXIT(lines 561 563) no Hoare annotation was computed. [2018-10-27 00:50:21,637 INFO L428 ceAbstractionStarter]: At program point exitENTRY(lines 561 563) the Hoare annotation is: true [2018-10-27 00:50:21,637 INFO L425 ceAbstractionStarter]: For program point exitFINAL(lines 561 563) no Hoare annotation was computed. [2018-10-27 00:50:21,638 INFO L425 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-10-27 00:50:21,638 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:50:21,638 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:50:21,638 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:50:21,638 INFO L425 ceAbstractionStarter]: For program point L578-1(lines 578 580) no Hoare annotation was computed. [2018-10-27 00:50:21,638 INFO L425 ceAbstractionStarter]: For program point L576-1(lines 576 589) no Hoare annotation was computed. [2018-10-27 00:50:21,638 INFO L428 ceAbstractionStarter]: At program point dll_createENTRY(lines 574 591) the Hoare annotation is: true [2018-10-27 00:50:21,638 INFO L428 ceAbstractionStarter]: At program point L576-3(lines 576 589) the Hoare annotation is: true [2018-10-27 00:50:21,638 INFO L425 ceAbstractionStarter]: For program point L576-4(lines 576 589) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L425 ceAbstractionStarter]: For program point dll_createFINAL(lines 574 591) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L428 ceAbstractionStarter]: At program point L579(line 579) the Hoare annotation is: true [2018-10-27 00:50:21,639 INFO L425 ceAbstractionStarter]: For program point dll_createEXIT(lines 574 591) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L425 ceAbstractionStarter]: For program point L584(lines 584 586) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L425 ceAbstractionStarter]: For program point L584-2(lines 584 586) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L425 ceAbstractionStarter]: For program point L578(lines 578 580) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:50:21,639 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:50:21,640 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:50:21,640 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:50:21,640 INFO L425 ceAbstractionStarter]: For program point L600-1(lines 600 603) no Hoare annotation was computed. [2018-10-27 00:50:21,640 INFO L428 ceAbstractionStarter]: At program point L600-3(lines 600 603) the Hoare annotation is: true [2018-10-27 00:50:21,640 INFO L425 ceAbstractionStarter]: For program point L600-4(lines 600 603) no Hoare annotation was computed. [2018-10-27 00:50:21,640 INFO L425 ceAbstractionStarter]: For program point dll_get_data_atFINAL(lines 599 605) no Hoare annotation was computed. [2018-10-27 00:50:21,640 INFO L428 ceAbstractionStarter]: At program point dll_get_data_atENTRY(lines 599 605) the Hoare annotation is: true [2018-10-27 00:50:21,640 INFO L425 ceAbstractionStarter]: For program point dll_get_data_atEXIT(lines 599 605) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 630) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 613 632) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point L628(line 628) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L421 ceAbstractionStarter]: At program point L624(line 624) the Hoare annotation is: false [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point L624-1(line 624) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point L624-2(lines 624 626) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point L622-1(lines 622 627) no Hoare annotation was computed. [2018-10-27 00:50:21,641 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 613 632) no Hoare annotation was computed. [2018-10-27 00:50:21,642 INFO L421 ceAbstractionStarter]: At program point L620(line 620) the Hoare annotation is: (<= 2 main_~len~0) [2018-10-27 00:50:21,642 INFO L425 ceAbstractionStarter]: For program point L620-1(lines 618 621) no Hoare annotation was computed. [2018-10-27 00:50:21,642 INFO L425 ceAbstractionStarter]: For program point L622-3(lines 622 627) no Hoare annotation was computed. [2018-10-27 00:50:21,642 INFO L421 ceAbstractionStarter]: At program point L622-4(lines 622 627) the Hoare annotation is: (and (<= 1 main_~i~0) (<= 2 main_~len~0)) [2018-10-27 00:50:21,642 INFO L425 ceAbstractionStarter]: For program point L618-1(lines 618 621) no Hoare annotation was computed. [2018-10-27 00:50:21,642 INFO L428 ceAbstractionStarter]: At program point L622-5(lines 622 627) the Hoare annotation is: true [2018-10-27 00:50:21,642 INFO L421 ceAbstractionStarter]: At program point L616(line 616) the Hoare annotation is: (<= 2 main_~len~0) [2018-10-27 00:50:21,642 INFO L425 ceAbstractionStarter]: For program point L616-1(line 616) no Hoare annotation was computed. [2018-10-27 00:50:21,647 INFO L421 ceAbstractionStarter]: At program point L618-3(lines 618 621) the Hoare annotation is: (<= 2 main_~len~0) [2018-10-27 00:50:21,647 INFO L425 ceAbstractionStarter]: For program point L618-4(lines 618 621) no Hoare annotation was computed. [2018-10-27 00:50:21,647 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 613 632) the Hoare annotation is: true [2018-10-27 00:50:21,647 INFO L421 ceAbstractionStarter]: At program point L625(lines 613 632) the Hoare annotation is: false [2018-10-27 00:50:21,647 INFO L425 ceAbstractionStarter]: For program point dll_destroyEXIT(lines 592 598) no Hoare annotation was computed. [2018-10-27 00:50:21,648 INFO L428 ceAbstractionStarter]: At program point dll_destroyENTRY(lines 592 598) the Hoare annotation is: true [2018-10-27 00:50:21,648 INFO L425 ceAbstractionStarter]: For program point L593-1(lines 593 597) no Hoare annotation was computed. [2018-10-27 00:50:21,648 INFO L428 ceAbstractionStarter]: At program point L593-3(lines 593 597) the Hoare annotation is: true [2018-10-27 00:50:21,648 INFO L425 ceAbstractionStarter]: For program point L593-4(lines 592 598) no Hoare annotation was computed. [2018-10-27 00:50:21,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:50:21 BoogieIcfgContainer [2018-10-27 00:50:21,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:50:21,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:50:21,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:50:21,664 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:50:21,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:50:20" (3/4) ... [2018-10-27 00:50:21,669 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:50:21,676 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dll_update_at [2018-10-27 00:50:21,676 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure exit [2018-10-27 00:50:21,676 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:50:21,676 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dll_create [2018-10-27 00:50:21,677 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dll_get_data_at [2018-10-27 00:50:21,677 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:50:21,677 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure dll_destroy [2018-10-27 00:50:21,686 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-10-27 00:50:21,686 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-10-27 00:50:21,686 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 00:50:21,751 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_af7f8b31-5ff0-4728-aa95-64044943c718/bin-2019/utaipan/witness.graphml [2018-10-27 00:50:21,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:50:21,753 INFO L168 Benchmark]: Toolchain (without parser) took 1967.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 953.1 MB in the beginning and 1.0 GB in the end (delta: -85.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,756 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:50:21,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 927.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,757 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 927.5 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,758 INFO L168 Benchmark]: Boogie Preprocessor took 28.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,758 INFO L168 Benchmark]: RCFGBuilder took 675.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,759 INFO L168 Benchmark]: TraceAbstraction took 703.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,759 INFO L168 Benchmark]: Witness Printer took 88.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:50:21,762 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.1 MB in the beginning and 927.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 927.5 MB in the beginning and 1.1 GB in the end (delta: -190.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 675.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.7 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 703.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. * Witness Printer took 88.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 630]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: 1 <= i && 2 <= len - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 2 <= len - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 59 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 94 SDtfs, 11 SDslu, 52 SDs, 0 SdLazy, 7 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 29 PreInvPairs, 35 NumberOfFragments, 33 HoareAnnotationTreeSize, 29 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1633 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...